Form 10-Q - Quarterly report [Sections 13 or 15(d)]

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

__________________________________________________

FORM 10-Q

__________________________________________________

(Mark One)


x			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2024


o			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ______ to

000-32743

(Commission File Number)

__________________________________________________

DZS INC.

(Exact name of registrant as specified in its charter)

__________________________________________________


Delaware			22-3509099
(State or other jurisdiction of incorporation or organization)			(I.R.S. Employer Identification Number)

5700 Tennyson Parkway, Suite 400 Plano, Texas			75024
(Address of principal executive offices)			(Zip code)

(469) 327-1531

(Registrant’s telephone number, including area code)

__________________________________________________

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, $0.001 par value	DZSI	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes o No x

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes o No x

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in rule 12b-2 of the Exchange Act.

Large accelerated filer

Accelerated filer

Non-accelerated filer

Smaller reporting company

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No x


As of August 15, 2024, there were 38,035,977 shares outstanding of the registrant’s common stock, $0.001 par value.

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TABLE OF CONTENTS


		Page
PART I. FINANCIAL INFORMATION

Item 1.	Financial Statements	3
	Unaudited Condensed Consolidated Balance Sheets	3
	Unaudited Condensed Consolidated Statements of Comprehensive Loss	4
	Unaudited Condensed Consolidated Statements of Stockholders' Equity	5
	Unaudited Condensed Consolidated Statements of Cash Flows	6
	Notes to Unaudited Condensed Consolidated Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	23
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	30
Item 4.	Controls and Procedures	30

PART II. OTHER INFORMATION

Item 1.	Legal Proceedings	34
Item 1A.	Risk Factors	34
Item 5.	Other Information	34
Item 6.	Exhibits	34
	Signatures	37

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PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

DZS INC. AND SUBSIDIARIES

Unaudited Condensed Consolidated Balance Sheets

(In thousands, except par value)


	March 31, 2024		December 31, 2023
Assets
Current assets:
Cash and cash equivalents	$	2,636	$	13,822
Restricted cash	1,285		1,280
Accounts receivable - trade, net of allowance for credit losses of $4,110 as of March 31, 2024 and $4,282 as of December 31, 2023	38,428		44,816
Other receivables	453		452
Inventories	31,807		33,113
Contract assets	756		825
Prepaid expenses and other current assets	7,807		7,685
Current assets held for sale	89,378		94,375
Total current assets	172,550		196,368
Property, plant and equipment, net	2,801		3,108
Right-of-use assets from operating leases	3,929		3,661

Intangible assets, net	23,875		25,065
Other assets	12,959		13,371
Non-current assets held for sale	6,574		7,808
Total assets	$	222,688	$	249,381
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable - trade	$	35,805	$	46,003
Contract liabilities	14,825		14,945
Operating lease liabilities	2,647		2,732
Accrued and other liabilities	25,109		32,704
Current liabilities held for sale	71,204		69,427
Total current liabilities	149,590		165,811
Long-term debt	7,641		7,308
Contract liabilities - non-current	2,021		2,834
Operating lease liabilities - non-current	3,909		3,994
Pension liabilities	11,136		11,504
Other long-term liabilities	1,547		1,797
Non-current liabilities held for sale	31,849		33,574
Total liabilities	207,693		226,822
Commitments and contingencies (Note 13)
Stockholders’ equity:
Common stock, $0.001 par value, 72,000 shares authorized, 37,610 and 32,122 shares issued and outstanding as of March 31, 2024 and December 31, 2023, respectively.	36		31
Preferred stock, $0.001 par value, 25,000 shares authorized, and no shares issued and outstanding as of March 31, 2024 and December 31, 2023, respectively.	—		—
Additional paid-in capital	307,358		294,863
Accumulated other comprehensive loss	(9,805)		(8,447)
Accumulated deficit	(282,594)		(263,888)
Total stockholders’ equity	14,995		22,559
Total liabilities and stockholders’ equity	$	222,688	$	249,381

See accompanying notes to unaudited condensed consolidated financial statements.

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DZS INC. AND SUBSIDIARIES

Unaudited Condensed Consolidated Statements of Comprehensive Loss

(In thousands, except per share data)


	Three Months Ended March 31,
	2024		2023
Net revenue	$	27,667	$	44,367
Cost of revenue	15,054		27,202
Gross profit	12,613		17,165
Operating expenses:
Research and product development	7,034		9,601
Selling, marketing, general and administrative	14,993		19,579
Restructuring and other charges	288		4,152

Amortization of intangible assets	1,190		1,271
Total operating expenses	23,505		34,603
Operating loss	(10,892)		(17,438)
Interest expense, net	(1,213)		(626)
Other income (expense), net	(324)		481
Loss from continuing operations before income taxes	(12,429)		(17,583)
Income tax provision	1,106		2,452
Net Loss from continuing operations	(13,535)		(20,035)
Loss from discontinued operations, net of income tax provision	(5,171)		(3,782)
Net loss	(18,706)		(23,817)

Foreign currency translation adjustments (a)	(1,320)		(1,889)
Actuarial loss	(38)		(60)
Comprehensive loss	$	(20,064)	$	(25,766)
Net loss per share from continuing operations
Basic	$	(0.36)	$	(0.65)
Diluted	$	(0.36)	$	(0.65)
Net loss per share from discontinued operations
Basic	$	(0.14)	$	(0.12)
Diluted	$	(0.14)	$	(0.12)
Weighted average shares outstanding
Basic	37,399		31,045
Diluted	37,399		31,045

(a)Includes net loss of $0.3 million on intra-entity foreign currency transactions that are of a long-term investment nature for three months ended March 31, 2024. Includes net gain of $0.2 million on intra-entity foreign currency transactions that are of a long-term investment nature for three months ended March 31, 2023.

See accompanying notes to unaudited condensed consolidated financial statements.

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DZS INC. AND SUBSIDIARIES

Unaudited Condensed Consolidated Statements of Stockholders' Equity

(In thousands)


	Common stock			Additional paid-in capital		Accumulated other comprehensive loss		Accumulated deficit		Total stockholders' equity
	Shares	Amount
Three months ended March 31, 2024:
Balance as of December 31, 2023	32,122	$	31	$	294,863	$	(8,447)	$	(263,888)	$	22,559
Issuance of common stock upon vesting of restricted stock units, exercise of stock options and employee stock plan purchases, net of shares withheld for taxes	53	—		(33)		—		—		(33)
Private placement of shares	5,435	5		9,920		—		—		9,925
Stock-based compensation	—	—		2,608		—		—		2,608
Net loss	—	—		—		—		(18,706)		(18,706)
Other comprehensive loss	—	—		—		(1,358)		—		(1,358)
Balance as of March 31, 2024	37,610	$	36	$	307,358	$	(9,805)	$	(282,594)	$	14,995











Three months ended March 31, 2023:
Balance as of December 31, 2022	30,968	$	30	$	271,884	$	(4,662)	$	(128,670)	$	138,582
Issuance of common stock upon vesting of restricted stock units, exercise of stock options and employee stock plan purchases, net of shares withheld for taxes	134	1		(88)		—		—		(87)
Stock-based compensation	—	—		4,486		—		—		4,486
Net loss	—	—		—		—		(23,817)		(23,817)

Other comprehensive loss	—	—		—		(1,949)		—		(1,949)
Balance as of March 31, 2023	31,102	$	31	$	276,282	$	(6,611)	$	(152,487)	$	117,215

See accompanying notes to unaudited condensed consolidated financial statements.

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DZS INC. AND SUBSIDIARIES

Unaudited Condensed Consolidated Statements of Cash Flows

(In thousands)


	Three months ended March 31,
	2024		2023
Cash flows from operating activities:
Net loss	$	(18,706)	$	(23,817)
Net loss from continuing operations	(13,535)		(20,035)
Loss from discontinued operations (net of income tax (benefit))	(5,171)		(3,782)
Adjustments to reconcile loss to net cash used in operating activities:
Depreciation and amortization	1,573		2,143

Amortization of deferred financing costs	338		60
Stock-based compensation	2,131		3,917
Inventory write-down provision (recovery)	(3,815)		796
Provision for credit losses, net of recoveries	(161)		(74)
Provision for sales returns	3,529		541
Provision for warranty expense	(614)		(42)
Unrealized loss (gain) on foreign currency transactions	325		127

Loss on disposal of property, plant and equipment			40
Deferred taxes	(111)		—
Changes in operating assets and liabilities:
Accounts receivable	6,418		11,098
Other receivable	(1)		39
Inventories	4,941		7,611
Contract assets	70		(29)
Prepaid expenses and other assets	334		(1,417)
Accounts payable	(9,530)		(9,719)
Contract liabilities	(916)		(3,678)
Accrued and other liabilities	(11,328)		(1,643)
Net cash used in operating activities from continuing operations	(25,523)		(14,047)
Net cash used in operating activities from discontinued operations	(9,192)		(4,868)
Net cash used in operating activities	(30,033)		(15,169)
Cash flows from investing activities:
Intra-group loan to discontinued operations	—		(5,000)
Proceeds from disposal of property, plant and equipment and other assets	—		1,790
Purchases of property, plant and equipment	(74)		(659)

Net cash used in investing activities from continuing operations	(74)		(3,869)
Net cash used in investing activities from discontinued operations	(99)		4,884
Net cash provided by (used in) investing activities	(173)		1,015
Cash flows from financing activities:
Proceeds from private placement of shares	9,925		—


Proceeds from short-term borrowings and line of credit, net	—		8,000


Repayments of short-term borrowings and line of credit	—		(313)
Payments for debt issue costs	—		(122)

Proceeds from exercise of stock awards and employee stock plan purchases	(33)		(87)
Net cash provided by financing activities from continuing operations	9,892		7,478
Net cash provided by (used in) financing activities from discontinued operations	7,997		(868)
Net cash provided by financing activities	17,889		6,610
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(712)		96
Net change in cash, cash equivalents and restricted cash	(13,029)		(7,448)
Cash, cash equivalents and restricted cash at beginning of period	20,909		38,464
Cash, cash equivalents and restricted cash at end of period	$	7,880	$	31,016

Reconciliation of cash, cash equivalents and restricted cash to consolidated balance sheet
Cash and cash equivalents	$	2,636	$	22,046

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Restricted cash	1,285		1,278
Cash, cash equivalents and restricted cash held for sale	3,959		7,692
	$	7,880	$	31,016

Supplemental disclosure of cash flow information:
Cash paid during the period for:
Continuing Operations:
Interest - bank and trade facilities	$	337	$	660

Income taxes	$	17	$	—
Discontinued Operations:
Interest - bank and trade facilities	$	187	$	—
Interest - related party	$	—	$	64
Income taxes	$	32	$	480

See accompanying notes to unaudited condensed consolidated financial statements.

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Notes to Unaudited Condensed Consolidated Financial Statements

(1) Organization and Summary of Significant Accounting Policies

(a) Description of Business

DZS Inc. (referred to, collectively with its subsidiaries, as “DZS” or the “Company”) is a global provider of access and optical networking infrastructure and artificial intelligence ("AI") driven cloud software solutions that enable the emerging hyper-connected, hyper-broadband world and broadband experiences. The Company provides a wide array of reliable, cost-effective networking technologies and cloud software to a diverse customer base.

DZS was incorporated under the laws of the state of Delaware in June 1999. The Company is headquartered in Plano, Texas with contract manufacturers located in the U.S., China, India, and Korea. The Company maintains offices to provide sales and customer support at global locations. Through 2022, we have also used our manufacturing facility in Seminole, Florida. In October 2022, we announced an agreement with Fabrinet, a third-party provider of electromechanical and electronic manufacturing and distribution services, to transition the sourcing, procurement, order-fulfillment, manufacturing and return merchandise authorization activities in the Company's Seminole facility to Fabrinet. The transition began in October 2022 and substantially completed in the beginning of 2023, whereupon the Company no longer manufactures its products.

On April 5, 2024, the Company completed a divestiture of certain subsidiaries in Asia (the "Asia Sale"). The divestiture allows DZS to focus on the Americas, Europe/Middle East/Africa (EMEA), and Australia/New Zealand (ANZ) regions that are strategically aligned with the technology and acquisition investments made over the past several years.

(b) Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) for interim financial information and with the instructions to Form 10-Q and Article 3 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. These financial statements include the accounts of the Company and its wholly owned subsidiaries. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements of the Company and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, filed with the Securities and Exchange Commission (“SEC”) on August 13, 2024. For a complete description of what the Company believes to be the critical accounting policies and estimates used in the preparation of its unaudited condensed consolidated financial statements, refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.

Operating results of subsidiaries divested in conjunction with the Asia Sale were classified as discontinued operations in the unaudited condensed consolidated statements of comprehensive loss for all periods presented. Assets and liabilities of these subsidiaries were classified as assets and liabilities held for sale of the unaudited condensed consolidated balance sheets for all periods presented.

All intercompany transactions and balances have been eliminated in consolidation. The unaudited condensed consolidated financial statements reflect all adjustments (consisting only of normal recurring adjustments) that, in the opinion of management, are necessary for a fair presentation of the results for the interim periods presented. The results of operations for the current interim period are not necessarily indicative of results to be expected for the current year or any other period.

The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with U.S. GAAP, assuming the Company will continue as a going concern.

We continue to be exposed to macroeconomic pressures in the post-COVID-19 environment, including concerns about energy costs, geopolitical issues, inflation, the availability and cost of credit, business and consumer confidence, and unemployment. We have seen improvement in our supply chain in 2024 as supply chain pricing, freight and logistics costs, product and component availability, and extended lead-times which were a challenge in prior years begin to alleviate. We expect elevated costs for components and expedite fees to further improve throughout 2024.

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(d) Use of Estimates

The preparation of the unaudited condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ materially from those estimates.

(e) Disaggregation of Revenue

The following table presents revenues by product technology (in thousands):


	Three Months Ended March 31,
	2024		2023
Access Networking Infrastructure	$	20,232	$	35,005
Cloud Software & Services	7,435		9,362
Total	$	27,667	$	44,367

The following table present revenues by geographical concentration (in thousands):


	Three Months Ended March 31,
	2024		2023
Americas	$	15,957	$	24,966
Europe, Middle East, Africa	10,823		18,054
Asia	887		1,347
Total	$	27,667	$	44,367

(f) Concentration of Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash, cash equivalents and restricted cash, accounts receivable, and contract assets. Cash, cash equivalents and restricted cash consist of financial deposits and money market accounts that are principally held with various domestic and international financial institutions with high credit standing. As of March 31, 2024, the Company had cash accounts in excess of Federal Deposit Insurance Corporation ("FDIC") insured limits.

The Company’s customers include competitive and incumbent local exchange carriers, competitive access providers, internet service providers, wireless carriers and resellers serving these markets. The Company performs ongoing credit evaluations of its customers and generally does not require collateral. Allowances are maintained for credit losses based upon the expected collectability of accounts receivable using historical loss rates adjusted for customer-specific factors and current economic conditions. The Company determines historical loss rates on a rational and systematic basis. The Company performs periodic assessments of its customers’ liquidity and financial condition through analysis of information obtained from credit rating agencies, financial statement review and historical and current collection trends.

Activity under the Company’s allowance for credit losses consists of the following (in thousands):


	Three Months Ended March 31,
	2024		2023
Balance at beginning of period	$	4,282	$	2,971
Charged to expense, net of recoveries	(161)		(74)

Foreign currency exchange impact	(11)		8
Balance at end of period	$	4,110	$	2,905

For the three months ended March 31, 2024, one customer accounted for 13% of net revenue. For the three months ended March 31, 2023, one customer accounted for 15% of net revenue.

As of March 31, 2024, two customers represented 19% and 13% of net accounts receivable, respectively. As of December 31, 2023, one customer represented 10% of net accounts receivable.

As of March 31, 2024, and December 31, 2023, net accounts receivables from customers in countries other than the United States represented 68% and 74%, respectively.

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(g) Business Combinations

We account for business combinations using the acquisition method, which requires the identification of the acquirer, the determination of the acquisition date and the allocation of the purchase price paid by the acquirer to the identifiable tangible and intangible assets acquired, the liabilities assumed, including any contingent consideration and any noncontrolling interest in the acquiree at their acquisition date fair values. Goodwill represents the excess of the purchase price over the fair value of net assets acquired, including the amount assigned to identifiable intangible assets. Identifiable intangible assets with finite lives are amortized over their expected useful lives. Acquisition-related costs are expensed in the periods in which the costs are incurred. The results of operations of acquired businesses are included in our consolidated financial statements from the acquisition date.

(h) Restructuring and Other Charges

From time to time, the Company takes actions to align its workforce, facilities and operating costs with perceived market opportunities, business strategies and changes in market and business conditions. The Company recognizes a liability for the cost associated with an exit or disposal activity in the period in which the liability is incurred, except for one-time employee termination benefits, which are measured at the communication date and recognized ratably over the required service period, if any.

(i) Warrants

The Company accounts for warrant instruments as either equity-classified or liability-classified instruments based on an assessment of the specific terms of the warrants and applicable authoritative guidance in ASC 480 and ASC 815. The assessment considers whether the warrants are freestanding financial instruments pursuant to ASC 480, meet the definition of a liability pursuant to ASC 480, and meet all of the requirements for equity classification under ASC 815, including whether the warrants are indexed to the Company’s own stock and whether the holders of the warrants could potentially require “net cash settlement” in a circumstance outside of the Company’s control, among other conditions for equity classification. Upon issuance, warrants are initially measured at fair value.

(j) Assets and Liabilities Held for Sale and Discontinued Operations

The Company classifies long-lived assets or disposal groups and related liabilities as held-for-sale when management having the appropriate authority, generally the Company's Board of Directors ("the Board") or certain Executive Officers, commits to a plan of sale, the disposal group is ready for immediate sale, an active program to locate a buyer has been initiated and the sale is probable and expected to be completed within one year. Once classified as held-for-sale, disposal groups are valued at the lower of their carrying amount or fair value less estimated selling costs. Depreciation on these properties is discontinued at the time they are classified as held for sale, but operating revenues, operating expenses and interest expense continue to be recognized until the date of disposal.

The Company accounts for discontinued operations when there is a disposal of a component group or a group of components that represents a strategic shift that will have a major effect on the Company’s operations and financial results. The Company aggregates the results of operations for discontinued operations into a single line item in the interim condensed consolidated statements of operations and comprehensive loss for all periods presented.

Unless specifically noted otherwise, footnote disclosures reflect the results of continuing operations only for all periods presented. The results of discontinued operations are presented in Note 2 Assets and Liabilities Held for Sale and Discontinued Operations.

(k) Recent Accounting Pronouncements

In December 2023, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update ("ASU") 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which aims to address requests for improved income tax disclosures from investors that use the financial statements to make capital allocation decisions. The amendments in this ASU address the investor requests for more transparency of income tax information and apply to all entities that are subject to income taxes. The ASU is effective for years beginning after December 15, 2024, but early adoption is permitted. This ASU should be applied on a prospective basis, although retrospective application is permitted. Management is currently evaluating the impact of the changes required by the new standard on the Company's financial statements and related disclosures.

In March 2024, the SEC issued Release Nos. 33-11275; 34-99678 "The Enhancement and Standardization of Climate-Related Disclosures for Investors", which require registrants to provide certain climate-related information in their registration statements and annual reports. The rules require information about a registrant's climate-related risks that are reasonably likely to have a material impact on its business, results of operations, or financial condition. The compliance date for this release was scheduled to be fiscal year 2027 for smaller reporting companies. On April 4, 2024, the SEC voluntarily stayed implementation of this new rule pending judicial review. The Company is currently analyzing the impact that the new climate-related rules will have on its consolidated financial statements and related disclosures.

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(2) Assets and Liabilities Held for Sale and Discontinued Operations

During the first quarter of 2024, the Company made a strategic decision to divest certain entities in Asia with the intention, among other things, to focus its market strategy, technology and innovation on the Americas, EMEA and ANZ regions. On January 5, 2024, the Company and DZS California Inc. (“DZS California”), a wholly owned subsidiary of the Company, entered into a Stock Purchase Agreement (the “Stock Purchase Agreement”) with DASAN Networks, Inc. (“DNI”). Pursuant to the Stock Purchase Agreement, DZS California sold to DNI all of the equity interests in DASAN Network Solutions, Inc., a Korean company (“DNS Korea”), D-Mobile Limited, a Taiwan company, DZS Vietnam Company Limited, a Vietnamese company, Dasan India Private Limited, an Indian company, and DZS Japan, Inc., a Japanese company (the “Asia Sale”). The purchase price for the divestiture consisted of $3.8 million cash, net of certain adjustments, and the elimination of approximately $34 million in debt owed to DNI as of the transaction date. DNI also assumed all DNS Korea's debt obligations to foreign banks outstanding as of the transaction date. The Asia Sale closed on April 5, 2024. As of March 31, 2024, DNI owns approximately 24.1% of the outstanding shares of the Company's common stock.

As of March 31, 2024, the Company determined that its business divested with the Asia Sale met the criteria to be classified as held for sale. The disposition of the operations represented a major strategic shift in the business and met the criteria of discontinued operations. The Company has classified the assets and liabilities of the Asia business as held for sale as of March 31, 2024.

Loss from discontinued operations, net of tax, of the Asia business, which is presented in total in the Unaudited Condensed Consolidated Statement of Comprehensive Loss for the three months ended March 31, 2024, and 2023, respectively, are as follows:


	Three Months Ended March 31,
	2024		2023
Net revenue	$	25,324	$	25,446
Cost of revenue	21,201		20,116
Gross profit	4,123		5,330
Operating expenses	8,801		10,452
Operating loss from discontinued operations	(4,678)		(5,122)
Interest expense, net	(981)		(168)
Other income, net	959		247
Loss from discontinuing operations before income taxes	(4,700)		(5,043)
Income tax provision (benefit)	471		(1,261)
Net loss from discontinued operations	$	(5,171)	$	(3,782)

For the three months ended March 31, 2024, net revenue and cost of revenue from discontinued operations included $0.4 million and $0.3 million of related party transactions with DNI, respectively. For the three months ended March 31, 2023, net revenue and cost of revenue from discontinued operations included $0.2 million and $0.1 million of related party transactions with DNI, respectively.

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The following table presents the amounts reported in the Unaudited Condensed Consolidated Balance Sheets as held for sale related to the APAC assets as of March 31, 2024, and December 31, 2023, respectively.


	March 31, 2024		December 31, 2023
Assets
Current assets:
Cash, cash equivalents and restricted cash	$	3,812	$	5,657
Accounts receivable - trade, net of allowance for doubtful accounts	29,435		25,661
Other receivables	10,121		12,765
Inventories	44,172		49,114
Prepaid expenses and other current assets	1,838		1,178
Total current assets of discontinued operations	89,378		94,375
Property, plant and equipment, net	2,185		2,615
Right-of-use assets from operating leases	2,819		3,475
Intangible assets, net	419		419
Other assets	1,151		1,299
Total assets of discontinued operations	$	95,952	$	102,183
Liabilities
Current liabilities:
Accounts payable - trade	$	30,450	$	37,911
Short-term debt – bank, trade facilities and secured borrowings	25,622		19,633
Contract liabilities	785		1,041
Operating lease liabilities	1,595		1,858
Accrued and other liabilities	12,752		8,984
Total current liabilities of discontinued operations	71,204		69,427
Long-term debt	29,457		30,600
Contract liabilities - non-current	721		878
Operating lease liabilities - non-current	1,219		1,617
Other long-term liabilities	452		479
Total liabilities of discontinued operations	$	103,053	$	103,001

As of March 31, 2024, the held for sale liabilities included a total of $34.0 million of the related party borrowings from DNI. The respective borrowings were settled in conjunction with the Asia Sale.

Agreements with divested entities

In connection with the completion of the Asia Sale on April 5, 2024, the Company entered into several agreements with certain divested entities (collectively referred to as "DNS") that, among other things, provide a framework for the Company’s relationship with these entities after the Asia Sale. The following summarizes some of the most significant agreements and relationships that the Company continues to have with DNS.

Transition Services Agreement

The Company entered into a transition services agreement pursuant to which the Company and DNS provide various services to each other. The services provided include human resources, information technology, certain accounting, tax and other financial functions. The transition services agreement will terminate on the expiration of the term of the last service provided under it, which the Company anticipates to be on or around April 5, 2025.

Master Engineering Services Agreement

The Company and DNS entered into a master engineering services agreement pursuant to which DNS will provide engineering, research and development and other professional services to the Company. The agreement provides for a minimum annual purchase commitment of $2.5 million. The term of the agreement is seven years and may be renewed for an additional 12 month term, upon mutual agreement of both parties. After the expiration of a period of three years, either party shall have the right to terminate this agreement at any time upon 180 days prior written notice to the other party.

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Master Supply Agreement

The Company and DNS entered into master supply agreement pursuant to which DNS will provide contract product manufacturing and engineering services to the Company, and the Company will engage DNS to manufacture certain of its products. The term of the agreement is three years and will renew automatically for successive one year periods unless terminated in writing by both parties.

Intellectual Property License Agreement

The Company and DNS entered into an intellectual property matters agreement pursuant to which each party granted to the other party a generally irrevocable, non-exclusive, worldwide, and royalty-free license to use certain intellectual property rights retained by the other party. Under the intellectual property matters agreement, the term for the licensed or sublicensed know-how is perpetual and the term for each licensed or sublicensed patent is until expiration of the last valid claim of such patent. The intellectual property matters agreement will terminate only if the Company and DNS agree in writing to terminate it.

Reseller Agreement

The Company and DNS entered into reseller agreements pursuant to which each party can use the other party assistance with identified business opportunities in the specific regions. The party acting as a Reseller will be eligible for certain revenue sharing. The term of the agreement is seven years and may be renewed for an additional 12 month term, upon mutual agreement of both parties.

Master Services Agreement

The Company and DNS entered into master service agreements pursuant to which each party can use the other party to provide services, parts and licensed software to support customers in the specific regions. The party acting as the vendor will be eligible for payment for such services. The term of the agreement is one year and will be automatically renewed for an additional 12-month term, unless the other party provides notice of non-renewal 60 days prior to renewal

(3) Business Combinations

ASSIA Acquisition

On May 27, 2022, the Company acquired certain assets and liabilities of Adaptive Spectrum and Signal Alignment, Incorporated (“ASSIA”), an industry pioneer of broadband access quality-of-experience and service assurance software solutions (the “ASSIA Acquisition”). The core assets acquired include the CloudCheck® Wi-Fi experience management and Expresse® access network optimization software solutions. The purchase consideration was $23.7 million, including a $2.5 million holdback that was released during the third quarter of 2023. The purchase price allocation resulted in the recognition of goodwill of $6.4 million, which included the experienced workforce and the expected synergies from combining operations.

(4) Fair Value Measurement

The Company utilizes a fair value hierarchy that is intended to increase consistency and comparability in fair value measurements and related disclosures. The fair value hierarchy is based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity’s pricing based upon their own market assumptions. The fair value hierarchy consists of the following three levels:

Level 1 Inputs are quoted prices in active markets for identical assets or liabilities.

Level 2 Inputs are quoted prices for similar assets or liabilities in an active market, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable and market-corroborated inputs which are derived principally from or corroborated by observable market data.

Level 3 Inputs are derived from valuation techniques in which one or more significant inputs or value drivers are unobservable

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Assets and Liabilities Measured at Fair Value on a Recurring Basis:

The carrying values of financial instruments such as cash and cash equivalents, restricted cash, accounts and other receivables, accounts payable and accrued liabilities approximate their fair values based on their short-term nature. The Company classifies its cash and cash equivalents and restricted cash within Level 1 and other short-term assets and liabilities within Level 2. The carrying value of the Company's debt approximates its fair values based on the current rates available to the Company for debt of similar terms and maturities. The Company classifies its debt within Level 2.

The Company classifies its contingent liability from Optelian acquisition within Level 3 as it includes inputs not observable in the market. The Company estimates the fair value of contingent consideration as the present value of the expected contingent payments, determined using the revenue forecast for certain Optelian products through the end of 2023. The fair value of contingent liability is generally sensitive to changes in the revenue forecast during the payout period. The change in the respective fair value is included in selling, marketing, general and administrative expenses on the unaudited condensed consolidated statement of comprehensive income (loss).

The following table reconciles the beginning and ending balances of the Company’s Level 3 contingent liability (in thousands):


	Three Months Ended March 31,
	2024		2023
Balance at beginning of period	$	306	$	1,156

Net change in fair value	33		27
Balance at end of period	$	339	$	1,183

(5) Cash, Cash Equivalents and Restricted Cash

As of March 31, 2024, and December 31, 2023, the Company's cash, cash equivalents and restricted cash consisted of financial deposits. Cash, cash equivalents and restricted cash held within the U.S. totaled $2.2 million and $13.4 million as of March 31, 2024, and December 31, 2023, respectively. Cash, cash equivalents and restricted cash held within the U.S. are held at FDIC insured depository institutions. Cash, cash equivalents and restricted cash held outside the U.S. totaled $1.7 million as of both March 31, 2024, and December 31, 2023. Restricted cash consisted primarily of cash collateral for letters of credit.

(6) Balance Sheet Details

Balance sheet detail as of March 31, 2024, and December 31, 2023 is as follows (in thousands):

Inventories


	March 31, 2024		December 31, 2023
Raw materials	$	14,781	$	18,133

Finished goods	17,026		14,980
Total inventories	$	31,807	$	33,113

Inventories are stated at the lower of cost or net realizable value, with cost being computed based on an adjusted standard basis, which approximates actual cost on an average or first-in, first-out basis.

The Company recorded an inventory write-down recovery of $3.8 million for the three months ended March 31, 2024. The Company recorded a provision for inventory write-down of $0.8 million for the three months ended March 31, 2023.

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Property, plant and equipment


	March 31, 2024		December 31, 2023
Machinery and equipment	$	3,910	$	3,903
Leasehold improvements	1,317		1,321
Computers and software	1,315		1,302
Furniture and fixtures	1,642		1,656
Construction in progress and other	56		13
	8,240		8,195
Less: accumulated depreciation and amortization	(5,439)		(5,087)
Total property, plant and equipment, net	$	2,801	$	3,108

Depreciation expense associated with property, plant and equipment for the three months ended March 31, 2024 and March 31, 2023 was $0.4 million and $0.9 million, respectively.

Warranties

The Company accrues warranty costs based on historical trends for the expected material and labor costs to provide warranty services. The Company's standard warranty period is one year from the date of shipment with the ability for customers to purchase an extended warranty of up to five years from the date of shipment. The following table summarizes the activity related to the product warranty liability:


	Three Months Ended March 31,
	2024		2023
Balance at beginning of period	$	1,148	$	1,401
Charged to cost of revenue	(614)		(42)

Foreign currency exchange impact	(5)		10
Balance at end of period	$	529	$	1,369

Contract Balances

The Company records contract assets when it has a right to consideration and records accounts receivable when it has an unconditional right to consideration. Contract liabilities consist of cash payments received (or unconditional rights to receive cash) in advance of fulfilling performance obligations. The majority of the Company's performance obligations in its contracts with customers relate to contracts with a duration of less than one year.

The opening and closing balances of current and long-term contract assets and contract liabilities related to contracts with customers are as follows:


	Contract assets		Contract liabilities
December 31, 2023	$	825	$	17,779
March 31, 2024	$	756	$	16,846

The decrease in contract liabilities during the three months ended March 31, 2024, was primarily due to the revenue recognition criteria being met for previously deferred revenue, partially offset by invoiced amounts that did not yet meet the revenue recognition criteria. The amount of revenue recognized in the three months ended March 31, 2024, and 2023 that was included in the prior period contract liability balance was $4.9 million and $7.5 million, respectively. This revenue consists of services provided to customers who had been invoiced prior to the current period. We expect to recognize approximately 88% of outstanding contract liabilities as revenue over the next 12 months and the remainder thereafter.

The balance of contract cost deferred as of March 31, 2024, and December 31, 2023 was $1.1 million and $1.0 million, respectively. During the three months ended March 31, 2024, the Company recorded $0.1 million in amortization related to contract cost deferred as of December 31, 2023. During the three months ended March 31, 2023, the Company recorded $0.4 million in amortization related to contract cost deferred as of December 31, 2023.

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(7) Goodwill and Intangible Assets

Intangible assets consisted of the following (in thousands):


	March 31, 2024
	Gross Carrying Amount		Accumulated Amortization		Net
Customer relationships	$	19,090	$	(4,244)	$	14,846
Customer backlog	5,100		(1,591)		3,509
Developed technology	8,147		(3,199)		4,948
In-process research and development	890		(563)		327
Tradenames	300		(55)		245
Total intangible assets, net	$	33,527	$	(9,652)	$	23,875


	December 31, 2023
	Gross Carrying Amount		Accumulated Amortization		Net
Customer relationships	$	19,090	$	(3,682)	$	15,408
Customer backlog	5,100		(1,374)		3,726
Developed technology	8,147		(2,839)		5,308
In-process research and development	890		(519)		371
Tradenames	300		(48)		252
Total intangible assets, net	$	33,527	$	(8,462)	$	25,065

Amortization expense associated with intangible assets for the three months ended March 31, 2024, and March 31, 2023 was $1.2 million and $1.3 million, respectively.

The following table presents the future amortization expense of the Company’s intangible assets as of March 31, 2024 (in thousands):


Remainder of 2024	$	3,568
2025	4,753
2026	3,746
2027	3,143
2028	2,401
Thereafter	6,264
Total	$	23,875

As of March 31, 2024 and December 31, 2023, the Company' goodwill was fully impaired. The accumulated impairment was $13.6 million as of the end of each period.

(8) Debt

EdgeCo Term Loan

On December 29, 2023, the Company, as borrower, entered into a Loan Agreement (the “EdgeCo Loan Agreement”) with EdgeCo, LLC (“EdgeCo”), as lender. Pursuant to the EdgeCo Loan Agreement, the Company received a three-year term loan in an aggregate principal amount equal to $15.0 million. The principal amount of the loan is payable on December 29, 2026, and bears interest at a fixed rate of 13.0% per annum; provided, however, that in connection with the EdgeCo Second Loan Agreement, the maturity date of the EdgeCo Loan Agreement was extended to May 31, 2027. Refer to Note 16 Subsequent Events, in the Notes to Unaudited Condensed Consolidated Financial Statements, for more details.

The Loan Agreement contains various covenants that limit the ability of the Company (and in certain cases, certain of its subsidiaries) to, among other things, enter into any merger or consolidation, incur indebtedness, incur liens, make dividends or stock repurchases, and acquire any businesses (other than a similar business to that of the Company).

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The Loan Agreement contains events of default that are customary for loans of this type. If an event of default occurs under the Loan Agreement, EdgeCo will be entitled to accelerate and call the unpaid principal balance of the Loan and all accrued interest and to take various actions against the collateral, including by exercising its right to acquire or sell the collateral to satisfy any obligations under the outstanding indebtedness.

The Loan Agreement also (i) includes preemptive rights that allow EdgeCo to exercise a right of first refusal in the event the Company decides to seek additional debt financing of up to $15.0 million for additional operating capital or to offer for sale additional unregistered shares of its common stock, par value $0.001 per share, before December 31, 2026 and (ii) in connection with the Warrant Agreement (as defined below), provides EdgeCo with the right to designate a member of the Company’s Board of Directors, in each case subject to certain limitations and exceptions. In particular, EdgeCo’s designation right will terminate upon (x) the payment in full of the loan obligations and (y) its ownership of the Company’s Common Stock being less than 4.9% of the total outstanding Common Stock.

In connection with the Edge Co Loan Agreement, the Company also entered into (i) a Warrant Agreement (the “Warrant Agreement”), dated as of December 29, 2023, by and between the Company and EdgeCo that issued a warrant to EdgeCo to subscribe for 6,100,000 shares of Common Stock at an exercise price of $1.84 per share, which represents the closing price of the Common Stock on NASDAQ on the trading day immediately preceding the date of the Warrant Agreement, and (ii) a Registration Rights Agreement (the “EdgeCo Registration Rights Agreement”), dated as of December 29, 2023, by and between the Company and EdgeCo that provides EdgeCo customary demand and piggyback registration rights for the 6,100,000 shares of Common Stock underlying the warrant, in the event the warrant is exercised. The warrant was not registered under the Securities Act of 1933, as amended (the “Securities Act”), and was issued pursuant to the private placement exemption from registration thereunder provided by Section 4(a)(2) of the Securities Act. The Company determined the fair value of the warrant using the Black-Scholes option pricing model. The $7.2 million value of the warrant was recognized in stockholders’ equity, as the warrant satisfied all criteria for equity classification under ASC 815. The warrant is not remeasured each reporting period. The amount allocated to the warrant was accounted for as a debt discount and recorded as a reduction of debt obligation.

As of March 31, 2024, the Company's debt obligation under the EdgeCo Loan Agreement was $7.6 million net of unamortized debt discount and deferred issuance cost of $7.2 million and $0.2 million, respectively.

JPMorgan Credit Agreement

On February 9, 2022, the Company entered into a Credit Agreement (the “Credit Agreement”) by and between the Company, as borrower, certain subsidiaries of the Company, as guarantors, the lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent. The Credit Agreement originally provided for revolving loans (the "Revolving Credit Facility") in an aggregate principal amount of up to $30.0 million, up to $15.0 million of which is available for letters of credit and was scheduled to mature on February 9, 2024. The maximum amount that the Company can borrow under the Credit Agreement is subject to a borrowing base, which is based on a percentage of eligible accounts receivable and eligible inventory, subject to reserves and other adjustments, plus $10.0 million.

On May 27, 2022, the Company entered into a First Amendment to Credit Agreement (the “Amendment”), which amends the Credit Agreement dated February 9, 2022, with the Company, as borrower, certain subsidiaries of the Company, as guarantors, the lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent.

The Amendment, among other things, (1) provides for a term loan (the “Term Loan”) in an aggregate principal amount of $25.0 million with a maturity date of May 27, 2027, (2) extends the maturity date of the $30.0 million Revolving Credit Facility to May 27, 2025, (3) permits the ASSIA Acquisition, (4) modifies the applicable margin for borrowings under the Credit Agreement to be, at the Company’s option, either (i) the adjusted term SOFR rate plus a margin ranging from 3.0% to 3.5% per year or (ii) the prime rate plus a margin ranging from 2.0% to 2.5% per year, in each case depending on the Company’s leverage ratio, (5) modifies the letter of credit fee such that it ranges from 3.0% to 3.5%, depending on the Company’s leverage ratio, (6) modifies the commitment fee on the unused portion of the Revolving Credit Facility to range from 0.25% to 0.35% per year, depending on the Company’s leverage ratio, (7) modifies the method of calculating the leverage ratio, and (8) modifies the financial covenants to (i) increase the maximum permitted leverage ratio to 3.00 to 1.00 through September 30, 2022, 2.50 to 1.00 thereafter through September 30, 2023, and 2.00 to 1.00 thereafter and (ii) replace the minimum liquidity requirement with a minimum permitted fixed charge coverage ratio of 1.25 to 1.00.

On May 27, 2022, the Company borrowed the full amount of the Term Loan to finance the ASSIA Acquisition.

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On February 15, 2023, the Company entered into a Second Amendment to Credit Agreement (the "Second Amendment"), which amends the Credit Agreement dated February 9, 2022 (as previously amended on May 27, 2022). The Second Amendment, among other things, (1) modifies the financial covenants to (i) suspend the maximum leverage ratio requirement of 2.50 to 1.00 until the fiscal quarter ending September 30, 2023 and (ii) suspend the minimum fixed charge coverage ratio requirement of 1.25 to 1.00 until the fiscal quarter ending December 31, 2023, (2) adds new financial covenants to require (i) minimum liquidity of $30.0 million for the fiscal quarter ending March 31, 2023, $35.0 million for the fiscal quarters ending June 30, 2023 and September 30, 2023, and $20.0 million at any time until September 30, 2023, and (ii) minimum EBITDA (as defined in the Credit Facility) of ($1 million) for the fiscal quarter ending March 31, 2023 and $1 for the fiscal quarter ending June 30, 2023, (3) increases the applicable margin for adjusted term SOFR borrowings and prime rate borrowings to 4.0% and 3.0%, respectively, when the Company’s leverage ratio exceeds 2.50 to 1.00, (4) increases the commitment fee on the unused portion of the revolving commitment to 0.40% per year when the Company’s leverage ratio exceeds 2.50 to 1.00, and (5) prohibits dividends and other distributions and tightens certain covenants.

On May 8, 2023, the Company entered into a Third Amendment to the Credit Agreement (the "Third Amendment"), which amends the Credit Agreement dated February 9, 2022 (as previously amended on May 27, 2022, and February 15, 2023). The Third Amendment, among other things, (1) modifies the financial covenants to eliminate the minimum EBITDA (as defined in the Credit Facility) of ($1 million) for the fiscal quarter ending March 31, 2023, (2) decreases the calculation of the borrowing base by $5 million through June 30, 2023 and an additional $5 million thereafter, (3) reduces the amount of the Revolving Credit Facility commitment to $25 million effective June 15, 2023, and (4) increases the applicable margin for adjusted term SOFR borrowings and prime rate borrowings to 4.5% and 3.5%, respectively, when the Company’s leverage ratio exceeds 2.50 to 1.00.

In the third quarter of 2023, the Company repaid the Term Loan outstanding under the Credit Agreement and subsequently terminated the Credit Agreement, including the Revolving Credit Facility, on December 14, 2023.

(9) Employee Benefit Plans

Defined Contribution Plans

The Company maintains a 401(k) plan for its employees in the US whereby eligible employees may contribute up to a specified percentage of their earnings, on a pretax basis, subject to the maximum amount permitted by the Internal Revenue Code. Under the 401(k) plan, the Company made discretionary contributions to the plan in 2023. For the three months ended March 31, 2024, the Company recorded an expense of $0.2 million. For the three months ended March 31, 2023, the Company recorded an expense of $0.3 million.

Defined Benefit Plans

The Company sponsors defined benefit plans for its employees in Germany. Defined benefit plans provide pension benefits based on compensation and years of service. The Germany plans were frozen as of September 30, 2003, and have not been offered to new employees after that date. The Company has recorded the underfunded status as of March 31, 2024, and December 31, 2023 as a long-term liability on the unaudited condensed consolidated balance sheets. The accumulated benefit obligation for the plan in Germany was $11.1 million and $11.5 million as of March 31, 2024, and December 31, 2023, respectively. Periodic benefit costs for each of the three months ended March 31, 2024, and March 31, 2023 were $0.1 million.

The Company holds pension insurance contracts, with the Company as beneficiary, in the amount of $2.2 million as of both March 31, 2024,and December 31, 2023 related to individuals under the pension plans. The Company records these insurance contracts based on their cash surrender value at the balance sheet dates. These insurance contracts are classified as other assets on the Company’s unaudited condensed consolidated balance sheet. The Company intends to use any proceeds from these policies to fund the pension plans. However, since the Company is the beneficiary on these policies, these assets have not been designated pension plan assets.

(10) Restructuring and Other Charges

On September 17, 2022, DZS signed an agreement with Fabrinet, a third-party provider of electromechanical and electronic manufacturing and distribution services, to transition the sourcing, procurement, order-fulfillment, manufacturing and return merchandise authorization activities in the Company's Seminole, Florida facility to Fabrinet. The transition to Fabrinet began in October 2022 and substantially completed in the beginning of 2023. Post transition, the DZS Seminole, Florida-based operations, supply chain and manufacturing workforce was reduced by approximately two-thirds and the remaining team was relocated to an appropriately sized facility. For the three months ended March 31, 2023, the Company recorded $3.5 million of restructuring related costs, consisting of freight and expedite fees of $1.0 million,

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facility and labor costs of $0.8 million, accelerated depreciation of manufacturing related assets of $0.4 million, termination-related benefits of $0.3 million, inventory write-off of $0.5 million, and other costs of $0.5 million. The above expenses were included in restructuring and other charges on the unaudited condensed consolidated statement of comprehensive income (loss).

For the three months ended March 31, 2023, the Company also incurred certain maintenance costs related to impaired facilities and non-capitalizable implementation costs related to replacement of the Company’s legacy enterprise resource planning and reporting software. The Company included such costs in restructuring and other charges on the unaudited condensed consolidated statement of comprehensive income (loss).

For the three months ended March 31, 2024, the Company incurred $0.3 million of restructuring related costs primarily related to Fabrinet transition and certain maintenance costs related to impaired facilities. The Company included such costs in restructuring and other charges on the unaudited condensed consolidated statement of comprehensive income (loss).

(11) Net Loss Per Share

Basic net loss per share is computed by dividing the net loss for the period by the weighted average number of shares of common stock outstanding during the period. The calculation of diluted net loss per share gives effect to common stock equivalents; however, potential common stock equivalents are excluded if their effect is antidilutive. Potential common stock equivalents are composed of incremental shares of common stock issuable upon the exercise of stock options and the vesting of restricted stock units. In periods when a net loss is reported, all common stock equivalents are excluded from the calculation because they would have an anti-dilutive effect, meaning the loss per share would be reduced. Therefore, in periods when a loss is reported, basic and dilutive loss per share are the same.

The following table is a reconciliation of the numerator and denominator in the basic and diluted net loss per share calculation (in thousands, except per share data) for the three months ended March 31, 2024, and 2023:


	Three months ended March 31,
	2024		2023
Net loss	$	(18,706)	$	(23,817)
Loss from continuing operations	$	(13,535)	$	(20,035)
Loss from discontinued operations, net of income taxes	$	(5,171)	$	(3,782)
Weighted average number of shares outstanding:
Basic	37,399		31,045
Dilutive effect of equity based awards and warrants	—		—
Diluted	37,399		31,045
Net loss per share - basic
Continuing operations	$	(0.36)	$	(0.65)
Discontinued operations	$	(0.14)	$	(0.12)
Net loss per share - diluted
Continuing operations	$	(0.36)	$	(0.65)
Discontinued operations	$	(0.14)	$	(0.12)

The following table sets forth potential common stock that is not included in the diluted net loss per share calculation above because their effect would be anti-dilutive for the periods indicated (in thousands):


	Three months ended March 31,
	2024	2023
Outstanding stock options	1,268	563
Unvested restricted stock units	8,017	500
Outstanding Warrants	6,100	—

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(12) Leases

The Company leases certain properties and buildings (including manufacturing facilities, warehouses, and office spaces) and equipment under various arrangements which provide the right to use the underlying asset and require lease payments for the lease term. The Company’s lease portfolio consists of operating leases which expire at various dates through 2028.

Assets and liabilities related to operating leases are included in the consolidated balance sheets as right-of-use assets from operating leases, operating lease liabilities - current and operating lease liabilities - non-current. The Company recognizes minimum rental expense on a straight-line basis based on the fixed components of a lease arrangement. The Company amortizes this expense over the term of the lease beginning with the date of initial possession, which is the date the lessor makes an underlying asset available for use. For the three months ended March 31, 2024, the Company recognized lease expense of $0.5 million. For the three months ended March 31, 2023, the Company recognized lease expense of $0.6 million.

The following table presents the Company's future contractual rent obligations as of March 31, 2024 (in thousands):


Remainder of 2024	$	2,136
2025	1,953
2026	1,199
2027	956
2028	692

Total operating lease payments	6,936
Less: imputed interest	(380)
Total operating lease liabilities	$	6,556

(13) Commitments and Contingencies

Plume

On October 10, 2022, Plume Design, Inc. (“Plume”) filed suit against DZS in the Superior Court of the State of Delaware, alleging that DZS breached a reseller contract with Plume and seeking $24.75 million in damages. The parties have completed briefing on dispositive motions, and a trial is currently set for October 7, 2024. DZS intends to vigorously defend this lawsuit.

Class Action

In June and August of 2023, DZS shareholders filed three putative securities class actions related to DZS’s June 1, 2023, Form 8-K announcing the Company’s intention to restate its financial statements for the first quarter of 2023. Each suit was filed in the Eastern District of Texas. All three cases allege violations of Sections 10(b) and 20(a) of the Exchange Act against DZS, its Chief Executive Officer and its Chief Financial Officer. The cases are: (1) Shim v. DZS et al., filed June 14, 2023; (2) Link v. DZS et al., filed June 27, 2023; and (3) Cody v. DZS et al., filed August 9, 2023.

Three potential lead plaintiffs filed applications for appointment on August 14, 2023. On September 12, 2023, the cases were consolidated under the lead case Shim v. DZS et al. The plaintiffs are seeking unspecified damages, interest, fees, costs and interest. As of July 31, 2024, the court has not yet ruled on the appointment of a lead plaintiff and the Defendants have not yet responded to any complaint. DZS intends to vigorously defend these lawsuits.

In light of the events giving rise to the restatement, DZS began cooperating, and intends to continue to cooperate, with the U.S. Securities and Exchange Commission (the “SEC”), which has informed DZS that it is investigating potential violations of the federal securities laws related to DZS.

On June 3, 2024, counsel for a shareholder of the Company sent the Company a demand for certain books and records related to events related to the Company’s June 1, 2023, Form 8-K. The demand was made pursuant to Section 220 of the Delaware General Corporation Law. While the Company does not concede the demand is proper, it has produced certain records to the shareholder.

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In addition to the matters discussed above, from time to time, the Company is subject to various legal proceedings, claims and litigation arising in the ordinary course of business. While the outcome of these matters is currently not determinable, the Company records an accrual for legal contingencies that it has determined to be probable to the extent that the amount of the loss can be reasonably estimated. The Company does not expect that the ultimate costs to resolve these matters will have a material adverse effect on its consolidated financial position, results of operations or cash flows. However, litigation is subject to inherent uncertainties, and unfavorable rulings could occur. If an unfavorable ruling were to occur, there exists the possibility of a material adverse impact on the results of operations and cash flows of the reporting period in which the ruling occurs, or future periods.

(14) Income Taxes

Income tax expense for the three months ended March 31, 2024 was approximately $1.1 million on pre-tax loss of $12.4 million. Income tax expense for the three months ended March 31, 2023 was approximately $2.5 million on pre-tax loss of $17.6 million.

As of March 31, 2024, the income tax rate varied from the United States statutory income tax rate primarily due to valuation allowances in North America, and EMEA, mandatory R&D expense capitalization in the U.S., and foreign and state income tax rate differentials. Consistent with the prior periods, the Company continued to maintain valuation allowances in North America and EMEA.

The total amount of unrecognized tax benefits, including interest and penalties, as of March 31, 2024 was $5.2 million. There were no significant changes to unrecognized tax benefits during the three months ended March 31, 2024. The Company does not anticipate any significant changes with respect to unrecognized tax benefits within the next twelve months

(15) Enterprise-Wide Information

The Company is a global provider of ultra-broadband network access solutions and communications platforms deployed by advanced Tier 1, national and regional service providers and enterprise customers. There are no segment managers who are held accountable for operations, operating results and plans for levels or components below the Company unit level. Accordingly, the Company is considered to be in a single operating segment. The Company’s chief operating decision maker is the Company’s Chief Executive Officer, who reviews financial information presented on a consolidated basis accompanied with disaggregated revenues by geographic region for purposes of making operating decisions and assessing financial performance.

The Company attributes revenue from customers to individual countries based on location shipped. Refer to Note 1(e) Disaggregation of Revenue for the required disclosures on geographical concentrations and revenues by source.

The Company's property, plant and equipment, net of accumulated depreciation, were located in the following geographical areas (in thousands) as of March 31, 2024, and December 31, 2023:


	March 31, 2024		December 31, 2023
United States	$	2,550	$	2,838
Germany	120		144
Other	131		126
	$	2,801	$	3,108

(16) Subsequent Events

On May 3, 2024, the Company entered into a Share Purchase Agreement (the “Share Purchase Agreement”) with Casa Communications Holdings Pty Ltd, a private limited company registered in New South Wales, Australia (the “Seller”). Pursuant to the Share Purchase Agreement, the Company acquired all of the issued and outstanding share capital of NetComm Wireless Pty Ltd, a private limited company registered in New South Wales, Australia (“NetComm”) for a purchase price of approximately $8.1 million paid in cash. The purchase price also included a contingent consideration component based on the satisfaction of certain revenue thresholds for the period from January 1, 2024, to December 31, 2024. The maximum contingent consideration payable from the Company to the Seller is $3.0 million. The acquisition closed on June 1, 2024.

On May 31, 2024, the Company, as borrower, entered into a Loan Agreement (the “EdgeCo Second Loan Agreement”) with EdgeCo, LLC, as lender. Pursuant to the EdgeCo Second Loan Agreement, the Company received a three-year term loan in an aggregate principal amount equal to $15.0 million. The principal amount of the Loan is payable on May 31, 2027, and bears interest at a fixed rate of 13.0% per annum. In connection with the EdgeCo Second Loan Agreement, (i)

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the Company extended the maturity date of the amounts owed under the EdgeCo Loan Agreement to May 31, 2027 and (ii) the Company also entered into a Warrant Agreement (the “Second Warrant Agreement”), dated as of May 31, 2024, by and between the Company and EdgeCo, that issued a warrant to EdgeCo to subscribe for 6,100,000 shares of Common Stock at an exercise price of $0.9095 per share. The loan was primarily used to finance the acquisition of NetComm and provide working capital to NetComm.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

As used in this Quarterly Report on Form 10-Q, unless the context suggests otherwise, the terms “DZS,” the “Company” “we,” “our” and “us” refer to DZS Inc. and its subsidiaries.

Forward-Looking Statements

This Quarterly Report on Form 10-Q, including “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” contains forward-looking statements regarding future events and our future results that are subject to the safe harbors created under the Securities Act of 1933 (the “Securities Act”) and the Securities Exchange Act of 1934 (the “Exchange Act”). These statements are based on current expectations, estimates, forecasts, and projections about the industries in which we operate, and reflect the beliefs and assumptions of our management as of the date hereof.

We use words such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “forecast,” “goal,” “intend,” “may,” “plan,” “project,” “seek,” “should,” “target,” “will,” “would,” variations of such words, and similar expressions to identify forward-looking statements. In addition, statements that refer to projections of earnings, revenue, costs or other financial items in future periods; anticipated growth and trends in our business, industry or key markets; cost synergies, growth opportunities and other potential financial and operating benefits of our acquisitions; future growth and revenues from our products; our plans and our ability to refinance or repay our existing indebtedness prior to the applicable maturity dates; our ability to access capital to fund our future operations; future economic conditions and performance; the impact of the global outbreak of COVID-19, also known as the coronavirus; the impact of inflation, interest rate and foreign currency fluctuations; anticipated performance of products or services; competition; plans, objectives and strategies for future operations, including our pursuit or strategic acquisitions and our continued investment in research and development; other characterizations of future events or circumstances; and all other statements that are not statements of historical fact, are forward-looking statements within the meaning of the Securities Act and the Exchange Act. Although we believe that the assumptions underlying the forward-looking statements are reasonable, we can give no assurance that our expectations will be attained. Readers are cautioned not to place undue reliance on such forward-looking statements, which are being made as of the date of this Quarterly Report on Form 10-Q. Except as required by law, we undertake no obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise.

Factors which could have a material adverse effect on our operations and future prospects or which could cause actual results to differ materially from our expectations include factors discussed in Part I, Item 1A “Risk Factors” of our Annual Report on Form 10-K/A, as well as factors described from time to time in our future reports filed with the U.S. Securities and Exchange Commission (the “SEC”).

OVERVIEW

We are a global provider of access and optical networking infrastructure and artificial intelligence ("AI") driven cloud software solutions that enable the emerging hyper-connected, hyper-broadband world and broadband experiences. The Company provides a wide array of reliable, cost-effective networking technologies and cloud software to a diverse customer base.

We research, develop, test, sell, manufacture and support platforms in the areas of mobile transport and fixed broadband access, as discussed below. We have extensive regional development and support centers around the world to support our customer needs.

Our solutions and platforms portfolio include products in Access Edge, Subscriber Edge, Optical Edge, and Cloud Software.

•Access Edge. Our DZS Velocity portfolio offers a variety of solutions for carriers and service providers to connect residential and enterprise customers, either using high-speed fiber or leveraging their existing deployed copper networks to offer broadband services to customer premises. Once our broadband access products are deployed, the service provider can offer voice, ultra-high-definition video, high-speed internet access and business class services to their customers. In addition, the switching and routing products we provide in this space offer a high-performance and manageable solution that bridges the gap from carrier access technologies to the core network. DZS “system-on-a-card” technology increases the velocity with which service providers can leap to multi-gigabit services at scale by enabling rapid transition from Gigabit Passive Optical Network (“GPON”) to 10 Gigabit Symmetrical Passive Optical Network (“XGS-PON”) and 50 Gigabit Passive Optical Network (“50G PON”) in the future and Gigabit Ethernet (“GE”) to 10 GE via any service port across a range of existing DZS Velocity chassis and 10 GE optimized stackable fixed form factor units.

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•Subscriber Edge. Our DZS Helix connected premises product portfolio offers a large collection of optical network terminals (“ONTs”) and smart gateway solutions for any fiber to the “x” (“FTTx”) deployment. DZS ONTs and Smart Gateway platforms are designed for high bandwidth services being deployed to the home or business. Our connected premises portfolio consists of indoor/outdoor ONTs and gateways delivering best-in-class data and WiFi throughout the premises to support FTTx applications. The product feature set gives service providers an elegant migration path from legacy voice to soft switch architectures without replacing ONTs.

•Optical Edge. Our DZS Chronos and DZS Saber portfolios provide robust, manageable and scalable solution for mobile operators and service providers that enable them to modularly upgrade their edge transport to up to 400 gigabits per second (400 Gbps) speed as well as provide mobile fronthaul/midhaul/backhaul (“xHaul”) systems capable of supporting the transport needs for fifth generation wireless technologies (“5G”) and beyond. Our Saber solutions are 5G-ready xHaul and coherent optics capable and are open, software-defined, and field proven. Our mobile xHaul and edge transport products may be collocated at the radio access node base station and can aggregate multiple radio access node base stations into a single backhaul for delivery of mobile traffic to the radio access node network controller or be leveraged as transport vehicles for FTTx deployments. Our products support pure Ethernet switching as well as layer 3 IP and Multiprotocol Label Switching (“MPLS”), and we interoperate with other vendors in these networks. The Saber portfolio also provides high bandwidth optical transport and services, enabling service providers to push high bandwidth transport closer to their subscribers near the edge of their networks. Complementary to the growth of high bandwidth technologies like XGS-PON and 5G mobile at the access edge, Saber products leverage environmentally hardened dense wavelength-division multiplexing (DWDM) coherent optics to deliver transport bandwidth speeds from 100 Gbsaps to 400 Gbps over long distances that can be necessary to support advanced access and mobile technologies. Some DZS Saber platforms also provide additional feature such as multi-degree colorless directionless contentionless (CDC) FlexGrid reconfigurable optical add-drop multiplexer (ROADM) functionality, which allows service providers to easily adjust to changing network traffic demands.

•Cloud Software. Our DZS Cloud Software platforms provide software capabilities specifically in the areas of network orchestration, application slicing, automation, analytics, service assurance, and consumer broadband experience. Via our DZS Xtreme solutions we offer a commercial, carrier-grade network-slicing enabled orchestration platform complementing our position with physical network devices supporting Open RAN (“O-RAN”) and 4G/5G networks. Communications service providers (“CSPs”) are implementing software defined networking (“SDN”) and network functions virtualization (“NFV”) architectures to reduce reliance on proprietary systems and hardware, which increase service agility, flexibility, and deployment of new network services while lowering costs. Our Expresse software solution provides a clear view of multi-vendor, multi-technology access networks for both network and service assurance while monitoring, identifying, diagnosing, and fixing network problems via an AI-based recommendation engine. CloudCheck software is an advanced WiFi experience management and analytics solution that enables CSPs to monitor, manage and optimize home WiFi networks. DZS customers are implementing experience and service assurance solutions to reduce support costs, including specifically the costs of WiFi troubleshooting and truck rolls, improve service performance and customer satisfaction, and ultimately reduce subscriber churn and increase average revenue per user (ARPU).

•On June 1, 2024, the Company completed an acquisition of NetComm Wireless Pty Ltd, a private limited company registered in New South Wales, Australia (“NetComm”) (the "NetComm Acquisition"). In conjunction with the NetComm Acquisition, the Company expanded its product portfolio by adding NetComm’s Fiber Extension, Connected Home, Fixed Wireless Access (“FWA”) and Industrial Internet of Things (“IioT”) products.

Our key financial objectives include the following:

•Increasing revenue while continuing to carefully control costs;

•Continuing investments in strategic research and product development activities that will provide the maximum potential return on investment;

•Minimizing consumption of our cash and cash equivalents; and

•Improving gross margin through a wide range of initiatives, including an increase in the mix of recurring software revenue and reducing fixed costs by outsourcing manufacturing.

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RECENT DEVELOPMENTS

On January 5, 2024, the Company and DZS California Inc. (“DZS California”), a wholly owned subsidiary of the Company, entered into a Stock Purchase Agreement (the “Stock Purchase Agreement”) with DASAN Networks, Inc. (“DNI”). Pursuant to the Stock Purchase Agreement, DZS California sold to DNI all of the equity interests in DASAN Network Solutions, Inc., a Korean company (“DNS Korea”), D-Mobile Limited, a Chinese company, DZS Vietnam Company Limited, a Vietnamese company, Dasan India Private Limited, an Indian company, and DZS Japan, Inc., a Japanese company . The purchase price for the divestiture consisted of $3.8 million cash, net of certain adjustments, and the elimination of approximately $34 million in debt owed to DNI as of the transaction date. DNI also assumed all DNS Korea's debt obligations to foreign banks outstanding as of the transaction date. The Asia Sale closed on April 5, 2024. Refer to Note 2 Assets and Liabilities Held for Sale and Discontinued Operations, in the Notes to Unaudited Condensed Consolidated Financial Statements, for more detail about the Asia Sale and agreements with divested entities.

RESULTS OF OPERATIONS

The table below presents the historical consolidated statement of comprehensive loss as a percentage of revenues and period-over-period changes (dollars in thousands).


	Three Months Ended March 31,
	2024		% of net revenue		2023		% of net revenue		Increase (Decrease)
Net revenue	$	27,667	100	%	$	44,367	100	%	(37.6)	%
Cost of revenue	15,054		54	%	27,202		61	%	(44.7)	%
Gross profit	12,613		46	%	17,165		39	%	(26.5)	%
Operating expenses:
Research and product development	7,034		26	%	9,601		22	%	(26.7)	%
Selling, marketing, general and administrative	14,993		54	%	19,579		44	%	(23.4)	%
Restructuring and other charges	288		1	%	4,152		9	%	(93.1)	%

Amortization of intangible assets	1,190		4	%	1,271		3	%	(6.4)	%
Total operating expenses	23,505		85	%	34,603		78	%	(32.1)	%
Operating loss	(10,892)		(39)	%	(17,438)		(39)	%	(37.5)	%
Interest expense, net	(1,213)		(5)	%	(626)		(1)	%	93.8	%
Other income (expense), net	(324)		(1)	%	481		1	%	(167.4)	%
Loss from continuing operations before income taxes	(12,429)		(45)	%	(17,583)		(39)	%	(29.3)	%
Income tax provision	1,106		4	%	2,452		6	%	(54.9)	%
Net loss from continuing operations	(13,535)		(49)	%	(20,035)		(45)	%	(32.4)	%
Loss from discontinued operations, net of tax	(5,171)		(19)	%	(3,782)		(9)	%	36.7	%
Net loss	$	(18,706)	(68)	%	$	(23,817)	(54)	%	(21.5)	%

Net Revenue

The following table presents our revenues by product technology (dollars in thousands):


	Three Months Ended March 31,
	2024		2023		Increase (Decrease)
Access Networking Infrastructure	$	20,232	$	35,005	(42.2)	%
Cloud Software & Services	7,435		9,362		(20.6)	%
Total	$	27,667	$	44,367	(37.6)	%

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Our revenue from sales of access networking infrastructure products includes Access Edge, Optical Edge, and Subscriber Edge network solutions. Our cloud software and services revenue represent revenue from our Cloud Software solutions including DZS Xtreme, Expresse and CloudCheck software, and revenue from maintenance and other professional services associated with product shipments.

For the three months ended March 31, 2024, access networking infrastructure revenue decreased by 42.2% or $14.8 million to $20.2 million from $35.0 million in the same period last year. The decrease was primarily attributable to lower spending levels from our major customers in EMEA and Americas. The decrease in cloud software and services revenue for the three months ended March 31, 2024, was primarily due to the decreased product and software sales.

The following table presents our revenues by geographical concentration (dollars in thousands):


	Three Months Ended March 31,
	2024		2023		Increase (Decrease)
Americas	$	15,957	$	24,966	(36.1)	%
Europe, Middle East, Africa	10,823		18,054		(40.1)	%
Asia	887		1,347		(34.1)	%
Total	$	27,667	$	44,367	(37.6)	%

Our geographic diversification reflects the combination of market demand, a strategic focus on capturing market share through new customer wins and new product introductions.

The decrease in net revenue for the three months ended March 31, 2024, was attributable to decreased revenue in EMEA and Americas driven by decreased spending levels from our major customers.

For the three months ended March 31, 2024, one customer accounted for 13% of net revenue. For the three months ended March 31, 2023, one customer accounted for 15% of net revenue.

We anticipate that our results of operations in any given period may depend to a significant extent on sales to a small number of large customers. As a result, our revenue for any quarter may be subject to significant volatility based upon changes in orders from one or a small number of key customers.

Cost of Revenue and Gross Profit

Total cost of revenue decreased by 44.7% to $15.1 million for the three months ended March 31, 2024, compared to $27.2 million for the three months ended March 31, 2023. Total cost of revenue was 54.4% of net revenue for the three months ended March 31, 2024, compared to 61.3% of net revenue for the three months ended March 31, 2023, which resulted in an increase in gross profit percentage to 45.6% for the three months ended March 31, 2024, from 38.7% for the three months ended March 31, 2023.

The decrease in total cost of revenue was primarily due to the decrease in sales volume. The gross profit percentage increase was primarily due to the change in number and mix of products sold.

Operating Expenses

Research and Product Development Expenses: Research and product development expenses include personnel costs, outside contractor and consulting services, depreciation on lab equipment, costs of prototypes and overhead allocations.

Research and product development expenses decreased by 26.7% to $7.0 million for the three months ended March 31, 2024, compared to $9.6 million for the three months ended March 31, 2023. The decrease for the three months ended March 31, 2024, was primarily due to certain cost saving initiatives started by the Company in the third quarter of 2023.

We intend to continue to invest in research and product development to attain our strategic product development objectives, while seeking to manage the associated costs through expense controls.

Selling, Marketing, General and Administrative Expenses: Selling, marketing, general and administrative expenses include personnel costs for sales, marketing, administration, finance, information technology, human resources and general management as well as legal and accounting expenses, rent, utilities, trade show expenses and related travel costs.

Selling, marketing, general and administrative expenses decreased by 23.4% to $15.0 million for the three months ended March 31, 2024, compared to $19.6 million for the three months ended March 31, 2023. The decrease for the three months ended March 31, 2024, was primarily due to certain cost saving initiatives started by the Company in the third quarter of 2023.

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Restructuring and Other Charges: Restructuring and other charges for the three months ended March 31, 2024, and March 31, 2023 primarily related to the strategic decision to outsource manufacturing from the Company's Seminole, Florida facility to Fabrinet. Restructuring and other charges for the three months ended March 31, 2024, decreased since the transition to Fabrinet was substantially completed in 2023. See Note 10 Restructuring and Other Charges of the Notes to Unaudited Condensed Consolidated Financial Statements, for further information.

Interest Expense, net: Interest expense, net relates mainly to earnings from our cash and cash equivalents, interest expense associated with the credit facilities and amortization of debt discount and debt issuance costs associated with obtaining such credit facilities. For the three months ended March 31, 2024, the Company recorded $1.2 million of interest expense, net. For the three months ended March 31, 2023, the Company recorded $0.6 million of interest expense, net.

Other Income (Expense), net: Other income (expense), net relates mainly to realized and unrealized foreign currency exchange gains and losses. For the three months ended March 31, 2024, the Company recorded $0.3 million of other expense, net. For the three months ended March 31, 2023, the Company recorded $0.5 million of other income, net, respectively. The change in other income (expense), net was primarily due to foreign currency exchange rates fluctuation during the above periods.

Income Tax Provision: Income tax expense for the three months ended March 31, 2024 was approximately $1.1 million on pre-tax loss of $12.4 million Income tax expense for the three months ended March 31, 2023 was approximately $2.5 million on pre-tax loss of $17.6 million. As of March 31, 2024, the income tax rate varied from the United States statutory income tax rate primarily due to valuation allowances in North America, and EMEA, mandatory R&D expense capitalization in the U.S., and foreign and state income tax rate differentials. Consistent with the prior periods, the Company continued to maintain valuation allowances in North America and EMEA

Loss from discontinued operations, net of tax: Loss from discontinued operations, net of tax increased by 36.7% to $5.2 million for the three months ended March 31, 2024, compared to $3.8 million for the three months ended March 31, 2023. The increase of loss from discontinued operations, net of tax for the three months ended March 31, 2024, was primarily due a decrease of gross profit due to the change in number and mix of products sold in Asia region.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

For a complete description of what we believe to be the critical accounting policies and estimates used in the preparation of our unaudited condensed consolidated financial statements, refer to Note 1 Organization and Summary of Significant Accounting Policies in the Notes to our Audited Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2023, as supplemented by Note 1 Organization and Summary of Significant Accounting Policies of the Notes to Unaudited Condensed Consolidated Financial Statements in Part I, Item 1 of this Quarterly Report on Form 10-Q.

LIQUIDITY AND CAPITAL RESOURCES

Our operations are financed through a combination of our existing cash, cash equivalents, available credit facilities, and issuance of equity or debt instruments, based on our operating requirements and market conditions.

The following table summarizes the information regarding our cash and cash equivalents and working capital (in thousands):


	March 31, 2024		December 31, 2023
Unrestricted cash and cash equivalents	$	2,636	$	13,822
Working capital	$	4,786	$	5,609

As of March 31, 2024, we had $4.8 million of working capital and $2.6 million in unrestricted cash and cash equivalents, which included $1.6 million in cash balances held by our international subsidiaries. As of March 31, 2024, the Company's total debt obligation was $7.6 million net of unamortized debt discount and deferred issuance cost of $7.2 million and $0.2 million, respectively.

We continue to focus on cost management, operating efficiency and efficient discretionary spending. Management is actively taking measures to enhance profitability and liquidity, including reducing the Company’s cost structure and cash outflows, including its investment in inventory, and managing receivable balances through aggressive collection efforts and tighter customers payment terms. These plans are not completely within the Company’s control, as some actions are dependent on the Company’s lenders, vendors and customers. However, management believes that such plans are reasonably achievable and the Company will sufficiently meet its liquidity needs.

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In addition, if necessary, we may sell assets, issue debt or equity securities, rationalize the number of products we sell, adjust our manufacturing footprint, and reduce our operations in low margin regions, including reductions in headcount. Based on our current forecast, plans and current business conditions, the Company believes its existing cash, together with the working capital balances, will be sufficient to fund the Company’s ongoing liquidity requirements, including operating expenses and capital expenditures for at least the next 12 months from the date of this Quarterly Report on Form 10-Q.

The following table presents a summary of our cash flow activity for the periods set forth below (in thousands):


	Three months ended March 31,
	2024		2023
Net cash used in operating activities from continuing operations	$	(20,352)	$	(10,265)
Net cash used in investing activities from continuing operations	(74)		(3,869)
Net cash provided by financing activities from continuing operations	9,892		7,478
Net cash used in discontinued operations	(1,783)		(888)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(712)		96
Net change in cash, cash equivalents and restricted cash	$	(13,029)	$	(7,448)
Cash, cash equivalents and restricted cash at beginning of period	$	20,909	$	38,464
Cash, cash equivalents and restricted cash at end of period	$	7,880	$	31,016

Operating Activities

Net cash used in operating activities from continuing operations increased by $10.1 million to $20.4 million for the three months ended March 31, 2024 from net cash used in operating activities of $10.3 million for the three months ended March 31, 2023. The increase in cash used in operating activities was primarily due to a payment of certain liabilities primarily related to Fabrinet transition and restatement of financial statements.

Investing Activities

Net cash used in investing activities totaled $0.1 million for the three months ended March 31, 2024 and consisted primarily of cash used to purchase property and equipment. This is in comparison to net cash used in investing activities of $3.9 million for the three months ended March 31, 2023, which consisted primarily of intra-group loan to discontinued operations partially offset by cash received from the sale of manufacturing equipment as part of transition to Fabrinet partially offset by

Financing Activities

Net cash provided by financing activities totaled $9.9 million for the three months ended March 31, 2024 and consisted primarily of net proceeds from the private placement of shares. This is in comparison to net cash provided by financing activities of $7.5 million for the three months ended March 31, 2023, which consisted primarily of borrowing under the JPM Revolving Credit Facility.

Discontinued operations

Net cash used in discontinued operations increased by $0.9 million to $1.8 million for the three months ended March 31, 2024 from net cash used in discontinued operations of $0.9 million for the three months ended March 31, 2023. The increase in cash used in discontinued operations was primarily due to change in net working capital of discontinued operations.

Cash Management

Our primary source of liquidity comes from our cash, cash equivalents and restricted cash, which totaled $3.9 million at March 31, 2024. Our cash, cash equivalents and restricted cash as of March 31, 2024 included $1.7 million held by our international subsidiaries.

Debt Facilities

As of March 31, 2024. the Company's debt obligation under the EdgeCo Loan Agreement was $7.6 million net of unamortized debt discount and deferred issuance cost of $7.2 million and $0.2 million, respectively. Refer to Note 8 Debt, in the Notes to Unaudited Condensed Consolidated Financial Statements, for more detail about our current and past debt obligations. As of March 31, 2024, the Company's debt obligation also included a total of $34.0 million of the related party borrowings from DNI and $20.8 million of short-term obligations under the financing arrangements with foreign banks and other lending institutions, which were included into our liabilities held for sale. Refer to Note 2 Assets and Liabilities Held for Sale and Discontinued Operations, in the Notes to Unaudited Condensed Consolidated Financial Statements.

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Future Cash Requirements and Funding Sources

Our fixed commitments for cash expenditures consist primarily of payments under operating leases, inventory purchase commitments, and payments of principal and interest for debt obligations.

From time to time, we may provide or commit to extend credit or credit support to our customers. This financing may include extending the terms for product payments to customers. Any extension of financing to our customers will limit the capital that we have available for other uses.

Our accounts receivable represent a concentration of credit risk because a significant portion of the accounts receivable balance at any point in time typically consists of a relatively small number of customer account balances. As of March 31, 2024, two customers represented 19% and 13% of net accounts receivable, respectively. Net accounts receivable from customers in countries other than the United States represented 68% of such receivables. We do not currently have any material commitments for capital expenditures, or any other material commitments aside from operating leases for our facilities, inventory purchase commitments and debt obligations.

The Tax Cuts and Jobs Act of 2017 (TCJA) requires capitalization of all research and development ("R&D") costs incurred in tax years beginning after Dec. 31, 2021 for tax reporting purposes. Capitalized R&D costs will be deductible over five years if the R&D activities are performed in the U.S. or 15 years if the activities are performed outside of the U.S. Due to the Company's significant annual investment in R&D, the impact of this legislation will accelerate the utilization of the Company's net operating loss carryforwards and the timing of when the Company becomes a tax paying entity in the U.S.

Operating Leases

Future minimum operating lease obligations include primarily payments for our office locations and manufacturing, research and development locations, which expire at various dates through 2028. See Note 12 Leases of the Notes to Unaudited Condensed Consolidated Financial Statements for further information regarding our operating leases.

Purchase Commitments

We may have short-term purchase commitments related to the purchase orders for products and services, within the normal course of business. In certain instances, we are permitted to cancel, reschedule or adjust these orders.

Debt obligations

Future debt obligations include scheduled principal repayments, and associated interest payments which may vary based on changes in market interest rates. See Note 8 Debt to Unaudited Condensed Consolidated Financial Statements for further information regarding our debt obligations.

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Item 3. Quantitative and Qualitative Disclosures about Market Risk

Not required.

Item 4. Controls and Procedures

Disclosure Controls and Procedures

We are required to maintain disclosure controls and procedures designed to provide reasonable assurance of achieving the objective that information required to be disclosed in our reports filed or submitted pursuant to the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms and that such information is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate to allow for timely decisions regarding required disclosures. Our disclosure controls and procedures include those components of our internal control over financial reporting intended to provide reasonable assurance that transactions are recorded as necessary to permit preparation of financials in accordance with U.S. GAAP. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As required by Rule 13a-15(b) under the Exchange Act, we conducted an evaluation of the effectiveness of our disclosure controls and procedures as of March 31, 2024, the end of the period covered by this Quarterly Report on Form 10-Q. The evaluation was done under the supervision and with the participation of management, including our principal executive officer and principal financial officer. In the course of the evaluation of our disclosure controls and procedures, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were not effective as of March 31, 2024, due to the existence of unremediated material weaknesses in internal control over financial reporting described below.

A material weakness (as defined in Rule 12b-2 under the Exchange Act) is a deficiency, or combination of deficiencies, in internal control over financial reporting such that there is a reasonable possibility that a material misstatement in our annual or interim financial statements will not be prevented or detected on a timely basis.

Notwithstanding the existence of the material weaknesses described below, management believes that the condensed consolidated financial statements and related financial information included in this Quarterly Report on Form 10-Q fairly present, in all material respects, our financial position, results of operations and cash flows as of and for the periods presented, in conformity with generally accepted accounting principles in the United States of America ("GAAP").

Based on the assessment, management determined that the Company did not maintain effective internal control over financial reporting as of March 31, 2024, as a result of material weaknesses in the following areas:

Control Environment, Risk Assessment, Monitoring Activities, Information and Communication of Policies and Procedures

We did not maintain appropriately designed entity-level controls impacting the control environment and effective monitoring controls to prevent or detect material misstatements to the consolidated financial statements. These deficiencies were attributed to (i) inadequate oversight and accountability over the performance of control activities primarily in the Asia geographic region, (ii) ineffective identification and assessment of risks to properly design, implement, and maintain relevant controls for revenue recognition, (iii) inadequate education and training in certain areas important to financial reporting, and (iv) ineffective controls over ensuring consistent commitment to integrity and ethical values.

Control Activities Related to Certain Business Processes

These material weaknesses contributed to the following additional material weaknesses related to the control activities within certain business processes:

•Asia Region - We did not operate effective controls across substantially all of the Asia region’s business processes that were in place to achieve timely, complete, and accurate financial accounting, reporting, and disclosures.

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•Revenue Recognition - We did not appropriately design, implement and maintain effective controls over the revenue recognition process, relating to the proper application of Accounting Standards Codification Topic 606, Revenue from Contracts with Customers. The root cause of these control gaps was the inadequate or ineffective process level controls (including but not limited to controls around capturing and managing changes to customer order terms in the company’s records, timely processing of customer product returns, oversight of 3rd party business partners, and evaluating non-standard customer shipping terms, and ensuring consistent commitment to integrity and ethical values in documenting and recording revenue arrangements.

•Information Produced by the Entity – We did not have effective controls over the adequate testing of reports used in the operation of controls.

•Income Tax Controls - We did not operate effective controls surrounding deferred tax assets and liabilities and timeliness of performance of controls.

•Information Technology General Controls – We did not operate effective information technology general controls (“ITGC’s”) in the areas of user access, segregation of duties, and data processing related to certain information technology systems.

•Delivery Terms - In the fourth quarter of 2022, the Company entered a significant sales agreement with an existing customer which was subject to unique delivery terms. In reviewing the accounting for the revenue transaction, our management identified a deficiency in the effectiveness of a control intended to properly document and review relevant facts in connection with revenue recognition related to such transaction. Accordingly, a material error was detected in recorded revenue in our 2022 preliminary consolidated financial statements as a result of this misapplication of U.S. GAAP.

Remediation Plan and Status for Reported Material Weaknesses

We have been working and are currently working to remediate the material weaknesses described above, including assessing the need for additional remediation steps and implementing additional measures to remediate the underlying causes that gave rise to the material weaknesses. The Company is committed to a strong internal control environment as well as integrity and ethical values to ensure that a proper, consistent tone is communicated throughout the organization, including the expectation that previously existing deficiencies will be remediated through implementation of processes and controls to ensure strict compliance with GAAP and 2013 COSO framework.

As part of our commitment to strengthening our internal control over financial reporting, we have initiated or completed various personnel actions and remedial actions under the oversight of the Audit Committee, including:

•Initiated review and plan to enhance processes and controls around the IT environment and the use of key IT applications, including the storage, maintenance, the accessibility of transactional documentation, and the creation of key commercial documents within the Company’s Oracle system.

•Initiated review and plan to enhance processes and controls around internal control documentation and document retention.

•Review and design/improve the corporate compliance program', including:

◦Initiated a plan to Conduct an updated corporate risk assessment.

◦Completed a review, assessment, and update of the corporate code of conduct.

◦Issued statement from CEO on commitment to compliance and ethics and assess methods to regularly demonstrate effective “tone at the top” to foster culture of compliance

◦Plan to provide training to individuals who provide certifications or representations in connection with the company’s financial reporting on the meaning of the representations included therein.

◦Plan to develop and provide training throughout the organization on revenue recognition principles relating to the Company’s business, including specific training on issues discovered in the review.

◦Assessed, enhanced, and promoted the use of the whistleblower hotline, including making the hotline available to external parties

•Initiated an assessment and plan to enhance controls for corporate oversight of third-party manufacturers..

•Initiated a review and plan to assess the sufficiency of internal audit resources.

•Completed a review of all incentive and bonus compensation.

To address certain control activities related to material weakness in Revenue Recognition:

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•Initiated a review and plan to improve internal controls and processes related to capturing and managing changes to transaction terms, including required documentation and approvals.

•Plan to evaluate the adequacy of internal controls related to warehousing provided in connection with product sales.

•Initiated a review and plan to improve internal controls and processes for customer refusal of delivery or indication of intent to return an order, including timely notification to designated accounting personnel.

•Plan to assess and enhance process for use of freight forwarders to address specific risks.

•Plan to assess and enhance corporate oversight of regional finance and accounting personnel.

•Plan to assess the adequacy of staffing in the accounting function.

•Plan to assess and enhance the contract review process to address financial reporting risk, including those related to inconsistencies in terms between the contract and transaction documents and non-standard transaction terms.

In addition to the remedial actions planned and undertaken under the oversight of the Audit Committee, we are in the process of, and continue to focus on, strengthening our internal controls over financial reporting to remediate the material weaknesses. Management’s additional initiated and completed remediation efforts for each identified material weakness include the following:

•Asia Region

On April 5, 2024, the Company consummated the sale of its Asia operations to Korea-based DASAN Networks Inc. (DNI) and therefore, no longer needs to maintain internal controls over financial reporting for operations in the Asia region.

•Revenue Recognition and Delivery Terms

Subsequent to the discovery of the revenue recognition material weakness, we initiated or completed the following remedial actions starting in the third quarter of 2023:

◦Initiated the design and implementation of enhanced internal controls surrounding identification, review and analysis of key transaction terms including documentation and approvals affecting revenue recognition for product sales orders to ensure that transactions are recorded in accordance with Company’s policies and GAAP.

◦Initiated an evaluation of the adequacy and efficacy of controls related to warehousing provided in connection with product sales.

◦Initiated an evaluation of the adequacy and efficacy of controls and processes for customer refusal of delivery or indication of intent to return an order, including timely notification to designated accounting personnel.

◦We have enhanced our quarterly contract review process by implementing a quarterly certification program to ensure timely communication of modification of transaction terms by sales and operations personnel to identify inconsistencies between the contract and transaction documents and non-standard transaction terms.

◦We implemented participation in revenue recognition training programs by Company personnel.

•Information Produced by the Entity

◦Completed a review of controls over reports as part of the Company’s Q1 2023 implementation of Oracle Cloud.

◦Initiated a plan to enhance documentation retention policies around report parameters

◦Initiated a review of all reports used in controls in order to fully identify the control owners and provide training on appropriate control performance and documentation.

•Income Tax Controls

◦Initiated our review of remedial actions to be taken to address the lack of sufficient and accurate support used in the preparation of the tax provision.

◦Initiated our review of remedial actions to be taken to address the lack of timeliness in the performance of existing controls over the preparation of the tax provision.

The material weaknesses will not be considered remediated until the applicable remedial controls operate for a sufficient period of time and management has concluded, through testing, that these controls are operating effectively. Additional remediation measures may be required, which may require additional implementation time. We will continue to assess the effectiveness of our remediation efforts in connection with our evaluations of internal control over financial reporting.

We can give no assurance that the measures we take will remediate the material weaknesses that we identified or that any additional material weaknesses will not arise in the future. We will continue to monitor the effectiveness of these and other processes, procedures and controls and will make any further changes management determines appropriate.

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Changes in Internal Control over Financial Reporting

Except for the material weaknesses described above, no other change in the Company’s internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) occurred during the quarter ended March 31, 2024, that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

Plume

Class Action

In June and August of 2023, DZS shareholders filed three putative securities class actions related to DZS’s June 1, 2023 Form 8-K announcing the Company’s intention to restate its financial statements for the first quarter of 2023. Each suit was filed in the Eastern District of Texas. All three cases allege violations of Sections 10(b) and 20(a) of the Exchange Act against DZS, its Chief Executive Officer and its Chief Financial Officer. The cases are: (1) Shim v. DZS et al., filed June 14, 2023; (2) Link v. DZS et al., filed June 27, 2023; and (3) Cody v. DZS et al., filed August 9, 2023.

On June 3, 2024, counsel for a shareholder of the Company sent the Company a demand for certain books and records related to events related to the Company’s June 1, 2023 Form 8-K. The demand was made pursuant to Section 220 of the Delaware General Corporation Law. While the Company does not concede the demand is proper, it has produced certain records to the shareholder.

In addition to the matters discussed above and the Notice discussed in Note 16 of the Notes to Unaudited Condensed Consolidated Financial Statements, from time to time, the Company is subject to various legal proceedings, claims and litigation arising in the ordinary course of business. While the outcome of these matters is currently not determinable, the Company records an accrual for legal contingencies that it has determined to be probable to the extent that the amount of the loss can be reasonably estimated. The Company does not expect that the ultimate costs to resolve these matters will have a material adverse effect on its consolidated financial position, results of operations or cash flows. However, litigation is subject to inherent uncertainties, and unfavorable rulings could occur. If an unfavorable ruling were to occur, there exists the possibility of a material adverse impact on the results of operations and cash flows of the reporting period in which the ruling occurs, or future periods.

Item 1A. Risk Factors

A list of factors that could materially affect our business, financial condition or operating results is described in Part I, Item 1A, “Risk Factors” in the 2023 Form 10-K. There have been no material changes to our risk factors from those disclosed in Part I, Item 1A, “Risk Factors” in the 2023 Form 10-K.

Item 5. Other Information

None.

Item 6. Exhibits

The exhibits required to be filed with this quarterly report on Form 10-Q are listed in the Exhibit Index attached hereto and are incorporated herein by reference.

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EXHIBIT INDEX


Exhibit Number			Description

3.1			Restated Certificate of Incorporation of DASAN Zhone Solutions, Inc. (incorporated by reference to Exhibit 3.1 to the Company’s Annual Report on Form 10-K filed with the SEC on September 27, 2017).

3.2			Certificate of Amendment to the Restated Certificate of Incorporation of DZS Inc. (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed with the SEC on August 27, 2020).

3.3			Amended and Restated Bylaws of DZS Inc. (incorporated by reference to Exhibit 3.2 to the Company’s Annual Report on Form 10-K filed with the SEC on March 11, 2021).

10.1			Credit Agreement, dated as of February 9, 2022, among DZS Inc., as Borrower, the other Loan Parties party thereto, the Lenders from time to time parties thereto and JPMorgan Chase Bank, N.A., as Administrative Agent (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the SEC on February 10, 2022).

10.2			First Amendment to Credit Agreement, dated as of May 27, 2022, among DZS Inc., as Borrower, the other Loan Parties party thereto, the Lenders party thereto and JPMorgan Chase Bank, N.A., as Administrative Agent (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the SEC on June 1, 2022).

10.3			Second Amendment to Credit Agreement, dated as of February 15, 2023, among DZS Inc., as Borrower, the other Loan Parties party thereto, the Lenders party thereto and JPMorgan Chase Bank, N.A., as Administrative Agent (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the SEC on February 16, 2023).

10.4*			Third Amendment to Credit Agreement, dated as of May 8, 2023, among DZS Inc., as Borrower, the other Loan Parties party thereto, the Lenders party thereto and JPMorgan Chase Bank, N.A., as Administrative Agent (incorporated by reference to Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q filed with the SEC on May 9, 2023).

10.5			Loan Agreement, dated as of September 12, 2023, by and among Dasan Networks, Inc., as Lender, Dasan Network Solutions, Inc., as Borrower, DZS California, Inc., as Collateral Provider, and DZS Inc. (solely for the limited purposes stated therein) (English translation) (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the SEC on September 13, 2023).

10.6			Loan Agreement, dated as of September 22, 2023, by and among Dasan Networks, Inc., as Lender, Dasan Network Solutions, Inc., as Borrower, DZS California, Inc., as Collateral Provider, and DZS Inc. (English translation) (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the SEC on September 27 , 2023).

10.7			Loan Agreement, dated as of December 29, 2023, by and between EdgeCo, LLC and DZS Inc. (inco rporated by reference to Exhibit 10.1 to the Company's Current R eport on Form 8-K filed with the SEC on January 5, 202 4 ).

10.8			Warrant Agreement, dated as of December 29, 2023, by and between EdgeCo, LLC and DZS Inc. (inco rporated by reference to Exhibit 10.2 to the Company's Current Report on F orm 8-K filed with the SEC on J anuary 5, 202 4 ).

10.9			Registration Rights Agreement, dated as of December 29, 2023, by and between EdgeCo, LLC and DZS Inc. (inco rporated by reference to Exhibit 10.3 to the Comp any's Current Report on Form 8-K filed with the SEC on January 5, 202 4 ).

10.10			Securities Purchase Agreement, dated as of December 29, 2023, by and between DZS Inc. and IV Global Fund No. 4. (inco rporated by reference to Exhibit 10.4 to the Company's Current Report on Form 8-K filed with the SEC on January 5, 202 4 ).

10.11			Amended and Restated Registration Rights Agreement, dated as of January 3, 2024, by and between DZS Inc., DASAN Networks, Inc. and IV Global Fund No. 4. (incorporated by reference to Exhibit 10.5 to the Company's Current Report on Form 8-K filed with the SEC on January 5, 202 4 ).

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31.1*			Certification of Chief Executive Officer Pursuant to Rule 13a-14(a)/15d-14(a)

31.2*			Certification of Chief Financial Officer Pursuant to Rule 13a-14(a)/15d-14(a)

32.1*			Section 1350 Certification of Chief Executive Officer and Chief Financial Officer

101.INS			Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because XBRL tags are embedded within the Inline XBRL document

101.SCH			Inline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents

104			Cover Page Interactive Data File (embedded within the Inline XBRL document and included in Exhibit 101)

*			Filed herewith.
+			Indicates management contract or compensatory plan, contract or arrangement.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.


	DZS INC.

Date: August 20, 2024
	By:	/s/ Charles Daniel Vogt
	Name:	Charles Daniel Vogt
	Title:	President and Chief Executive Officer

	By:	/s/ Misty Kawecki
	Name:	Misty Kawecki
	Title:	Chief Financial Officer
		(Principal Financial Officer)

	By:	/s/ Brian Chesnut
	Name:	Brian Chesnut
	Title:	Chief Accounting Officer
		(Principal Accounting Officer)

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO

RULE 13a-14(a)/15d-14(a)

I, Charles Daniel Vogt, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of DZS Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 20, 2024


			/s/ CHARLES DANIEL VOGT
			Charles Daniel Vogt
			President and Chief Executive Officer

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO

RULE 13a-14(a)/15d-14(a)

I, Misty Kawecki, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of DZS Inc.;

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 20, 2024


			/s/ MISTY KAWECKI
			Misty Kawecki
			Chief Financial Officer (Principal Financial and Accounting Officer)

Exhibit 32.1

SECTION 1350 CERTIFICATION

Pursuant to 18 U.S.C. Section 1350, Charles Daniel Vogt, President and Chief Executive Officer of DZS Inc. (the “Company”) and Misty Kawecki, Chief Financial Officer of the Company hereby certify that, to their knowledge:

1.The Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2024 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: August 20, 2024


			/s/ CHARLES DANIEL VOGT
			Charles Daniel Vogt
			President and Chief Executive Officer

			/s/ MISTY KAWECKI
			Misty Kawecki
			Chief Financial Officer (Principal Financial and Accounting Officer)

Cover - shares	3 Months Ended
Cover - shares	Mar. 31, 2024	Aug. 15, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	000-32743
Entity Registrant Name	DZS INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	22-3509099
Entity Address, Address Line1	5700 Tennyson Parkway, Suite 400
Entity Address, City or Town	Plano
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75024
City Area Code	469
Local Phone Number	327-1531
Title of 12(b) Security	Common stock, $0.001 par value
Trading Symbol	DZSI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		38,035,977
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Entity Central Index Key	0001101680
Amendment Flag	false
Document Fiscal Period Focus	Q1

Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 2,636	$ 13,822
Restricted cash	1,285	1,280
Accounts receivable - trade, net of allowance for credit losses of $4,110 as of March 31, 2024 and $4,282 as of December 31, 2023	38,428	44,816
Other receivables	453	452
Inventories	31,807	33,113
Contract assets	756	825
Prepaid expenses and other current assets	7,807	7,685
Current assets held for sale	89,378	94,375
Total current assets	172,550	196,368
Property, plant and equipment, net	2,801	3,108
Right-of-use assets from operating leases	3,929	3,661
Intangible assets, net	23,875	25,065
Other assets	12,959	13,371
Non-current assets held for sale	6,574	7,808
Total assets	222,688	249,381
Current liabilities:
Accounts payable - trade	35,805	46,003
Contract liabilities	14,825	14,945
Operating lease liabilities	2,647	2,732
Accrued and other liabilities	25,109	32,704
Current liabilities held for sale	71,204	69,427
Total current liabilities	149,590	165,811
Long-term debt	7,641	7,308
Contract liabilities - non-current	2,021	2,834
Operating lease liabilities - non-current	3,909	3,994
Pension liabilities	11,136	11,504
Other long-term liabilities	1,547	1,797
Non-current liabilities held for sale	31,849	33,574
Total liabilities	207,693	226,822
Commitments and contingencies (Note 13)
Stockholders’ equity:
Common stock, $0.001 par value, 72,000 shares authorized, 37,610 and 32,122 shares issued and outstanding as of March 31, 2024 and December 31, 2023, respectively.	36	31
Preferred stock, $0.001 par value, 25,000 shares authorized, and no shares issued and outstanding as of March 31, 2024 and December 31, 2023, respectively.	0	0
Additional paid-in capital	307,358	294,863
Accumulated other comprehensive loss	(9,805)	(8,447)
Accumulated deficit	(282,594)	(263,888)
Total stockholders’ equity	14,995	22,559
Total liabilities and stockholders’ equity	$ 222,688	$ 249,381

Unaudited Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 4,110	$ 4,282
Common stock, authorized (in shares)	72,000,000
Common stock, issued (in shares)	37,610,000	32,122,000
Common stock, outstanding (in shares)	37,610,000	32,122,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, authorized (in dollars per share)	25,000,000	25,000,000
Preferred stock, issued (in dollars per share)	0	0
Preferred stock, outstanding (in dollars per share)	0	0
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001

Unaudited Condensed Consolidated Statements of Comprehensive Loss - USD ($)
shares in Thousands, $ in Thousands

3 Months Ended

Mar. 31, 2024

Mar. 31, 2023

Income Statement [Abstract]

Net revenue

$ 27,667

$ 44,367

Cost of revenue

15,054

27,202

Gross profit

12,613

17,165

Operating expenses:

Research and product development

7,034

9,601

Selling, marketing, general and administrative

14,993

19,579

Restructuring and other charges

288

4,152

Amortization of intangible assets

1,190

1,271

Total operating expenses

23,505

34,603

Operating loss

(10,892)

(17,438)

Interest expense, net

(1,213)

(626)

Other income (expense), net

(324)

481

Loss from continuing operations before income taxes

(12,429)

(17,583)

Income tax provision

1,106

2,452

Net Loss from continuing operations

(13,535)

(20,035)

Loss from discontinued operations, net of income tax provision

(5,171)

(3,782)

Net loss

(18,706)

(23,817)

Foreign currency translation adjustments

^[1]

(1,320)

(1,889)

Actuarial loss

(38)

(60)

Comprehensive loss

$ (20,064)

$ (25,766)

Income (Loss) from Continuing Operations, Per Basic Share

$ (0.36)

$ (0.65)

Income (Loss) from Continuing Operations, Per Diluted Share

(0.36)

(0.65)

Net loss per share from continuing operations

Basic (in dollars per share)

(0.36)

(0.65)

Diluted (in dollars per share)

(0.36)

(0.65)

Basic (in dollar per share)

(0.14)

(0.12)

Diluted (in dollar per share)

$ (0.14)

$ (0.12)

Weighted average shares outstanding

Basic (in shares)

37,399

31,045

Diluted (in shares)

37,399

31,045

[1]

Includes net loss of $0.3 million on intra-entity foreign currency transactions that are of a long-term investment nature for three months ended March 31, 2024. Includes net gain of $0.2 million on intra-entity foreign currency transactions that are of a long-term investment nature for three months ended March 31, 2023.

Unaudited Condensed Consolidated Statements of Comprehensive Loss (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Net gain (loss) on intra-entity foreign currency transactions	$ (0.3)	$ 0.2

Unaudited Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common stock	Additional paid-in capital	Accumulated other comprehensive loss	Accumulated deficit
Beginning Balance, Stockholders' equity (in shares) at Dec. 31, 2022		30,968,000
Beginning Balance, Stockholders' equity at Dec. 31, 2022	$ 138,582	$ 30	$ 271,884	$ (4,662)	$ (128,670)
Issuance of common stock upon vesting of restricted stock units, exercise of stock options and employee stock plan purchases, net of shares withheld for taxes (in shares)		134,000
Issuance of common stock upon vesting of restricted stock units, exercise of stock options and employee stock plan purchases, net of shares withheld for taxes	(87)	$ 1	(88)
Stock-based compensation	4,486		4,486
Net loss	(23,817)				(23,817)
Other comprehensive loss	(1,949)			(1,949)
Ending Balance, Stockholders' equity (in shares) at Mar. 31, 2023		31,102,000
Ending Balance, Stockholders' equity at Mar. 31, 2023	$ 117,215	$ 31	276,282	(6,611)	(152,487)
Beginning Balance, Stockholders' equity (in shares) at Dec. 31, 2023	32,122,000	32,122,000
Beginning Balance, Stockholders' equity at Dec. 31, 2023	$ 22,559	$ 31	294,863	(8,447)	(263,888)
Issuance of common stock upon vesting of restricted stock units, exercise of stock options and employee stock plan purchases, net of shares withheld for taxes (in shares)		53,000
Issuance of common stock upon vesting of restricted stock units, exercise of stock options and employee stock plan purchases, net of shares withheld for taxes	(33)		(33)
Issuance of common stock in public offering, net of issuance costs	9,925	$ 5	9,920
Private placement of shares		5,435,000
Stock-based compensation	2,608		2,608
Net loss	(18,706)				(18,706)
Other comprehensive loss	$ (1,358)			(1,358)
Ending Balance, Stockholders' equity (in shares) at Mar. 31, 2024	37,610,000	37,610,000
Ending Balance, Stockholders' equity at Mar. 31, 2024	$ 14,995	$ 36	$ 307,358	$ (9,805)	$ (282,594)

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net loss	$ (18,706)	$ (23,817)
Net Loss from continuing operations	(13,535)	(20,035)
Loss from discontinued operations, net of income tax provision	(5,171)	(3,782)
Adjustments to reconcile loss to net cash used in operating activities:
Depreciation and amortization	1,573	2,143
Amortization of deferred financing costs	338	60
Stock-based compensation	2,131	3,917
Inventory write-down provision (recovery)	(3,815)	796
Provision for credit losses, net of recoveries	(161)	(74)
Provision for sales returns	3,529	541
Provision for warranty expense	(614)	(42)
Unrealized loss (gain) on foreign currency transactions	325	127
Loss on disposal of property, plant and equipment		40
Deferred taxes	(111)	0
Changes in operating assets and liabilities:
Accounts receivable	6,418	11,098
Other receivable	(1)	39
Inventories	4,941	7,611
Contract assets	70	(29)
Prepaid expenses and other assets	334	(1,417)
Accounts payable	(9,530)	(9,719)
Contract liabilities	(916)	(3,678)
Accrued and other liabilities	(11,328)	(1,643)
Net cash used in operating activities from continuing operations	(25,523)	(14,047)
Net cash used in operating activities from discontinued operations	(9,192)	(4,868)
Net cash used in operating activities	(30,033)	(15,169)
Cash flows from investing activities:
Intra-group loan to discontinued operations	0	(5,000)
Proceeds from disposal of property, plant and equipment and other assets	0	1,790
Purchases of property, plant and equipment	(74)	(659)
Net cash used in investing activities from continuing operations	(74)	(3,869)
Net cash used in investing activities from discontinued operations	(99)	4,884
Net cash provided by (used in) investing activities	(173)	1,015
Cash flows from financing activities:
Proceeds from private placement of shares	9,925	0
Proceeds from short-term borrowings and line of credit, net	0	8,000
Repayments of short-term borrowings and line of credit	0	(313)
Payments for debt issue costs	0	(122)
Proceeds from exercise of stock awards and employee stock plan purchases	(33)	(87)
Net cash provided by financing activities from continuing operations	9,892	7,478
Net cash provided by (used in) financing activities from discontinued operations	7,997	(868)
Net cash provided by financing activities	17,889	6,610
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(712)	96
Net change in cash, cash equivalents and restricted cash	(13,029)	(7,448)
Cash, cash equivalents and restricted cash at beginning of period	20,909	38,464
Cash, cash equivalents and restricted cash at end of period	7,880	31,016
Reconciliation of cash, cash equivalents and restricted cash to consolidated balance sheet
Cash and cash equivalents	2,636	22,046
Restricted cash	1,285	1,278
Cash, cash equivalents and restricted cash held for sale	3,959	7,692
Cash, cash equivalents and restricted cash	7,880	31,016
Cash paid during the period for:
Interest - bank and trade facilities	337	660
Income taxes	17	0
Interest - bank and trade facilities	187	0
Interest - related party	0	64
Income taxes	$ 32	$ 480

Organization and Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Summary of Significant Accounting Policies

(a) Description of Business

(b) Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with U.S. GAAP, assuming the Company will continue as a going concern.

(d) Use of Estimates

(e) Disaggregation of Revenue

The following table presents revenues by product technology (in thousands):


	Three Months Ended March 31,
	2024		2023
Access Networking Infrastructure	$	20,232	$	35,005
Cloud Software & Services	7,435		9,362
Total	$	27,667	$	44,367

The following table present revenues by geographical concentration (in thousands):


	Three Months Ended March 31,
	2024		2023
Americas	$	15,957	$	24,966
Europe, Middle East, Africa	10,823		18,054
Asia	887		1,347
Total	$	27,667	$	44,367

(f) Concentration of Risk

Activity under the Company’s allowance for credit losses consists of the following (in thousands):


	Three Months Ended March 31,
	2024		2023
Balance at beginning of period	$	4,282	$	2,971
Charged to expense, net of recoveries	(161)		(74)

Foreign currency exchange impact	(11)		8
Balance at end of period	$	4,110	$	2,905

For the three months ended March 31, 2024, one customer accounted for 13% of net revenue. For the three months ended March 31, 2023, one customer accounted for 15% of net revenue.

As of March 31, 2024, two customers represented 19% and 13% of net accounts receivable, respectively. As of December 31, 2023, one customer represented 10% of net accounts receivable.

As of March 31, 2024, and December 31, 2023, net accounts receivables from customers in countries other than the United States represented 68% and 74%, respectively.

(g) Business Combinations

(h) Restructuring and Other Charges

(i) Warrants

(j) Assets and Liabilities Held for Sale and Discontinued Operations

(k) Recent Accounting Pronouncements

Assets and Liabilities Held for Sale and Discontinued Operations

3 Months Ended

Mar. 31, 2024

Discontinued Operations and Disposal Groups [Abstract]

Assets and Liabilities Held for Sale and Discontinued Operations


	Three Months Ended March 31,
	2024		2023
Net revenue	$	25,324	$	25,446
Cost of revenue	21,201		20,116
Gross profit	4,123		5,330
Operating expenses	8,801		10,452
Operating loss from discontinued operations	(4,678)		(5,122)
Interest expense, net	(981)		(168)
Other income, net	959		247
Loss from discontinuing operations before income taxes	(4,700)		(5,043)
Income tax provision (benefit)	471		(1,261)
Net loss from discontinued operations	$	(5,171)	$	(3,782)


	March 31, 2024		December 31, 2023
Assets
Current assets:
Cash, cash equivalents and restricted cash	$	3,812	$	5,657
Accounts receivable - trade, net of allowance for doubtful accounts	29,435		25,661
Other receivables	10,121		12,765
Inventories	44,172		49,114
Prepaid expenses and other current assets	1,838		1,178
Total current assets of discontinued operations	89,378		94,375
Property, plant and equipment, net	2,185		2,615
Right-of-use assets from operating leases	2,819		3,475
Intangible assets, net	419		419
Other assets	1,151		1,299
Total assets of discontinued operations	$	95,952	$	102,183
Liabilities
Current liabilities:
Accounts payable - trade	$	30,450	$	37,911
Short-term debt – bank, trade facilities and secured borrowings	25,622		19,633
Contract liabilities	785		1,041
Operating lease liabilities	1,595		1,858
Accrued and other liabilities	12,752		8,984
Total current liabilities of discontinued operations	71,204		69,427
Long-term debt	29,457		30,600
Contract liabilities - non-current	721		878
Operating lease liabilities - non-current	1,219		1,617
Other long-term liabilities	452		479
Total liabilities of discontinued operations	$	103,053	$	103,001

Agreements with divested entities

Transition Services Agreement

Master Engineering Services Agreement

Master Supply Agreement

Intellectual Property License Agreement

Reseller Agreement

Master Services Agreement

Business Combinations	3 Months Ended
Business Combinations	Mar. 31, 2024
Business Combination and Asset Acquisition [Abstract]
Business Combinations	Business Combinations ASSIA Acquisition On May 27, 2022, the Company acquired certain assets and liabilities of Adaptive Spectrum and Signal Alignment, Incorporated (“ASSIA”), an industry pioneer of broadband access quality-of-experience and service assurance software solutions (the “ASSIA Acquisition”). The core assets acquired include the CloudCheck® Wi-Fi experience management and Expresse® access network optimization software solutions. The purchase consideration was $23.7 million, including a $2.5 million holdback that was released during the third quarter of 2023. The purchase price allocation resulted in the recognition of goodwill of $6.4 million, which included the experienced workforce and the expected synergies from combining operations.

Fair Value Measurement

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurement

Level 1 Inputs are quoted prices in active markets for identical assets or liabilities.

Level 3 Inputs are derived from valuation techniques in which one or more significant inputs or value drivers are unobservable

Assets and Liabilities Measured at Fair Value on a Recurring Basis:

The following table reconciles the beginning and ending balances of the Company’s Level 3 contingent liability (in thousands):


	Three Months Ended March 31,
	2024		2023
Balance at beginning of period	$	306	$	1,156

Net change in fair value	33		27
Balance at end of period	$	339	$	1,183

Cash, Cash Equivalents and Restricted Cash	3 Months Ended
Cash, Cash Equivalents and Restricted Cash	Mar. 31, 2024
Cash and Cash Equivalents [Abstract]
Cash, Cash Equivalents and Restricted Cash	Cash, Cash Equivalents and Restricted CashAs of March 31, 2024, and December 31, 2023, the Company's cash, cash equivalents and restricted cash consisted of financial deposits. Cash, cash equivalents and restricted cash held within the U.S. totaled $2.2 million and $13.4 million as of March 31, 2024, and December 31, 2023, respectively. Cash, cash equivalents and restricted cash held within the U.S. are held at FDIC insured depository institutions. Cash, cash equivalents and restricted cash held outside the U.S. totaled $1.7 million as of both March 31, 2024, and December 31, 2023. Restricted cash consisted primarily of cash collateral for letters of credit.

Balance Sheet Details

3 Months Ended

Mar. 31, 2024

Balance Sheet Related Disclosures [Abstract]

Balance Sheet Details

Balance sheet detail as of March 31, 2024, and December 31, 2023 is as follows (in thousands):

Inventories


	March 31, 2024		December 31, 2023
Raw materials	$	14,781	$	18,133

Finished goods	17,026		14,980
Total inventories	$	31,807	$	33,113

Property, plant and equipment


	March 31, 2024		December 31, 2023
Machinery and equipment	$	3,910	$	3,903
Leasehold improvements	1,317		1,321
Computers and software	1,315		1,302
Furniture and fixtures	1,642		1,656
Construction in progress and other	56		13
	8,240		8,195
Less: accumulated depreciation and amortization	(5,439)		(5,087)
Total property, plant and equipment, net	$	2,801	$	3,108

Depreciation expense associated with property, plant and equipment for the three months ended March 31, 2024 and March 31, 2023 was $0.4 million and $0.9 million, respectively.

Warranties


	Three Months Ended March 31,
	2024		2023
Balance at beginning of period	$	1,148	$	1,401
Charged to cost of revenue	(614)		(42)

Foreign currency exchange impact	(5)		10
Balance at end of period	$	529	$	1,369

Contract Balances

The opening and closing balances of current and long-term contract assets and contract liabilities related to contracts with customers are as follows:


	Contract assets		Contract liabilities
December 31, 2023	$	825	$	17,779
March 31, 2024	$	756	$	16,846

Goodwill and Intangible Assets

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Intangible assets consisted of the following (in thousands):


	March 31, 2024
	Gross Carrying Amount		Accumulated Amortization		Net
Customer relationships	$	19,090	$	(4,244)	$	14,846
Customer backlog	5,100		(1,591)		3,509
Developed technology	8,147		(3,199)		4,948
In-process research and development	890		(563)		327
Tradenames	300		(55)		245
Total intangible assets, net	$	33,527	$	(9,652)	$	23,875


	December 31, 2023
	Gross Carrying Amount		Accumulated Amortization		Net
Customer relationships	$	19,090	$	(3,682)	$	15,408
Customer backlog	5,100		(1,374)		3,726
Developed technology	8,147		(2,839)		5,308
In-process research and development	890		(519)		371
Tradenames	300		(48)		252
Total intangible assets, net	$	33,527	$	(8,462)	$	25,065

Amortization expense associated with intangible assets for the three months ended March 31, 2024, and March 31, 2023 was $1.2 million and $1.3 million, respectively.

The following table presents the future amortization expense of the Company’s intangible assets as of March 31, 2024 (in thousands):


Remainder of 2024	$	3,568
2025	4,753
2026	3,746
2027	3,143
2028	2,401
Thereafter	6,264
Total	$	23,875

As of March 31, 2024 and December 31, 2023, the Company' goodwill was fully impaired. The accumulated impairment was $13.6 million as of the end of each period.

Debt	3 Months Ended
Debt	Mar. 31, 2024
Debt Disclosure [Abstract]
Debt	Debt EdgeCo Term Loan On December 29, 2023, the Company, as borrower, entered into a Loan Agreement (the “EdgeCo Loan Agreement”) with EdgeCo, LLC (“EdgeCo”), as lender. Pursuant to the EdgeCo Loan Agreement, the Company received a three-year term loan in an aggregate principal amount equal to $15.0 million. The principal amount of the loan is payable on December 29, 2026, and bears interest at a fixed rate of 13.0% per annum; provided, however, that in connection with the EdgeCo Second Loan Agreement, the maturity date of the EdgeCo Loan Agreement was extended to May 31, 2027. Refer to Note 16 Subsequent Events, in the Notes to Unaudited Condensed Consolidated Financial Statements, for more details. The Loan Agreement contains various covenants that limit the ability of the Company (and in certain cases, certain of its subsidiaries) to, among other things, enter into any merger or consolidation, incur indebtedness, incur liens, make dividends or stock repurchases, and acquire any businesses (other than a similar business to that of the Company). The Loan Agreement contains events of default that are customary for loans of this type. If an event of default occurs under the Loan Agreement, EdgeCo will be entitled to accelerate and call the unpaid principal balance of the Loan and all accrued interest and to take various actions against the collateral, including by exercising its right to acquire or sell the collateral to satisfy any obligations under the outstanding indebtedness. The Loan Agreement also (i) includes preemptive rights that allow EdgeCo to exercise a right of first refusal in the event the Company decides to seek additional debt financing of up to $15.0 million for additional operating capital or to offer for sale additional unregistered shares of its common stock, par value $0.001 per share, before December 31, 2026 and (ii) in connection with the Warrant Agreement (as defined below), provides EdgeCo with the right to designate a member of the Company’s Board of Directors, in each case subject to certain limitations and exceptions. In particular, EdgeCo’s designation right will terminate upon (x) the payment in full of the loan obligations and (y) its ownership of the Company’s Common Stock being less than 4.9% of the total outstanding Common Stock. In connection with the Edge Co Loan Agreement, the Company also entered into (i) a Warrant Agreement (the “Warrant Agreement”), dated as of December 29, 2023, by and between the Company and EdgeCo that issued a warrant to EdgeCo to subscribe for 6,100,000 shares of Common Stock at an exercise price of $1.84 per share, which represents the closing price of the Common Stock on NASDAQ on the trading day immediately preceding the date of the Warrant Agreement, and (ii) a Registration Rights Agreement (the “EdgeCo Registration Rights Agreement”), dated as of December 29, 2023, by and between the Company and EdgeCo that provides EdgeCo customary demand and piggyback registration rights for the 6,100,000 shares of Common Stock underlying the warrant, in the event the warrant is exercised. The warrant was not registered under the Securities Act of 1933, as amended (the “Securities Act”), and was issued pursuant to the private placement exemption from registration thereunder provided by Section 4(a)(2) of the Securities Act. The Company determined the fair value of the warrant using the Black-Scholes option pricing model. The $7.2 million value of the warrant was recognized in stockholders’ equity, as the warrant satisfied all criteria for equity classification under ASC 815. The warrant is not remeasured each reporting period. The amount allocated to the warrant was accounted for as a debt discount and recorded as a reduction of debt obligation. As of March 31, 2024, the Company's debt obligation under the EdgeCo Loan Agreement was $7.6 million net of unamortized debt discount and deferred issuance cost of $7.2 million and $0.2 million, respectively. JPMorgan Credit Agreement On February 9, 2022, the Company entered into a Credit Agreement (the “Credit Agreement”) by and between the Company, as borrower, certain subsidiaries of the Company, as guarantors, the lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent. The Credit Agreement originally provided for revolving loans (the "Revolving Credit Facility") in an aggregate principal amount of up to $30.0 million, up to $15.0 million of which is available for letters of credit and was scheduled to mature on February 9, 2024. The maximum amount that the Company can borrow under the Credit Agreement is subject to a borrowing base, which is based on a percentage of eligible accounts receivable and eligible inventory, subject to reserves and other adjustments, plus $10.0 million. On May 27, 2022, the Company entered into a First Amendment to Credit Agreement (the “Amendment”), which amends the Credit Agreement dated February 9, 2022, with the Company, as borrower, certain subsidiaries of the Company, as guarantors, the lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent. The Amendment, among other things, (1) provides for a term loan (the “Term Loan”) in an aggregate principal amount of $25.0 million with a maturity date of May 27, 2027, (2) extends the maturity date of the $30.0 million Revolving Credit Facility to May 27, 2025, (3) permits the ASSIA Acquisition, (4) modifies the applicable margin for borrowings under the Credit Agreement to be, at the Company’s option, either (i) the adjusted term SOFR rate plus a margin ranging from 3.0% to 3.5% per year or (ii) the prime rate plus a margin ranging from 2.0% to 2.5% per year, in each case depending on the Company’s leverage ratio, (5) modifies the letter of credit fee such that it ranges from 3.0% to 3.5%, depending on the Company’s leverage ratio, (6) modifies the commitment fee on the unused portion of the Revolving Credit Facility to range from 0.25% to 0.35% per year, depending on the Company’s leverage ratio, (7) modifies the method of calculating the leverage ratio, and (8) modifies the financial covenants to (i) increase the maximum permitted leverage ratio to 3.00 to 1.00 through September 30, 2022, 2.50 to 1.00 thereafter through September 30, 2023, and 2.00 to 1.00 thereafter and (ii) replace the minimum liquidity requirement with a minimum permitted fixed charge coverage ratio of 1.25 to 1.00. On May 27, 2022, the Company borrowed the full amount of the Term Loan to finance the ASSIA Acquisition. On February 15, 2023, the Company entered into a Second Amendment to Credit Agreement (the "Second Amendment"), which amends the Credit Agreement dated February 9, 2022 (as previously amended on May 27, 2022). The Second Amendment, among other things, (1) modifies the financial covenants to (i) suspend the maximum leverage ratio requirement of 2.50 to 1.00 until the fiscal quarter ending September 30, 2023 and (ii) suspend the minimum fixed charge coverage ratio requirement of 1.25 to 1.00 until the fiscal quarter ending December 31, 2023, (2) adds new financial covenants to require (i) minimum liquidity of $30.0 million for the fiscal quarter ending March 31, 2023, $35.0 million for the fiscal quarters ending June 30, 2023 and September 30, 2023, and $20.0 million at any time until September 30, 2023, and (ii) minimum EBITDA (as defined in the Credit Facility) of ($1 million) for the fiscal quarter ending March 31, 2023 and $1 for the fiscal quarter ending June 30, 2023, (3) increases the applicable margin for adjusted term SOFR borrowings and prime rate borrowings to 4.0% and 3.0%, respectively, when the Company’s leverage ratio exceeds 2.50 to 1.00, (4) increases the commitment fee on the unused portion of the revolving commitment to 0.40% per year when the Company’s leverage ratio exceeds 2.50 to 1.00, and (5) prohibits dividends and other distributions and tightens certain covenants. On May 8, 2023, the Company entered into a Third Amendment to the Credit Agreement (the "Third Amendment"), which amends the Credit Agreement dated February 9, 2022 (as previously amended on May 27, 2022, and February 15, 2023). The Third Amendment, among other things, (1) modifies the financial covenants to eliminate the minimum EBITDA (as defined in the Credit Facility) of ($1 million) for the fiscal quarter ending March 31, 2023, (2) decreases the calculation of the borrowing base by $5 million through June 30, 2023 and an additional $5 million thereafter, (3) reduces the amount of the Revolving Credit Facility commitment to $25 million effective June 15, 2023, and (4) increases the applicable margin for adjusted term SOFR borrowings and prime rate borrowings to 4.5% and 3.5%, respectively, when the Company’s leverage ratio exceeds 2.50 to 1.00. In the third quarter of 2023, the Company repaid the Term Loan outstanding under the Credit Agreement and subsequently terminated the Credit Agreement, including the Revolving Credit Facility, on December 14, 2023.

Employee Benefit Plans	3 Months Ended
Employee Benefit Plans	Mar. 31, 2024
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans Defined Contribution Plans The Company maintains a 401(k) plan for its employees in the US whereby eligible employees may contribute up to a specified percentage of their earnings, on a pretax basis, subject to the maximum amount permitted by the Internal Revenue Code. Under the 401(k) plan, the Company made discretionary contributions to the plan in 2023. For the three months ended March 31, 2024, the Company recorded an expense of $0.2 million. For the three months ended March 31, 2023, the Company recorded an expense of $0.3 million. Defined Benefit Plans The Company sponsors defined benefit plans for its employees in Germany. Defined benefit plans provide pension benefits based on compensation and years of service. The Germany plans were frozen as of September 30, 2003, and have not been offered to new employees after that date. The Company has recorded the underfunded status as of March 31, 2024, and December 31, 2023 as a long-term liability on the unaudited condensed consolidated balance sheets. The accumulated benefit obligation for the plan in Germany was $11.1 million and $11.5 million as of March 31, 2024, and December 31, 2023, respectively. Periodic benefit costs for each of the three months ended March 31, 2024, and March 31, 2023 were $0.1 million. The Company holds pension insurance contracts, with the Company as beneficiary, in the amount of $2.2 million as of both March 31, 2024,and December 31, 2023 related to individuals under the pension plans. The Company records these insurance contracts based on their cash surrender value at the balance sheet dates. These insurance contracts are classified as other assets on the Company’s unaudited condensed consolidated balance sheet. The Company intends to use any proceeds from these policies to fund the pension plans. However, since the Company is the beneficiary on these policies, these assets have not been designated pension plan assets.

Restructuring and Other Charges	3 Months Ended
Restructuring and Other Charges	Mar. 31, 2024
Restructuring and Related Activities [Abstract]
Restructuring and Other Charges	Restructuring and Other Charges On September 17, 2022, DZS signed an agreement with Fabrinet, a third-party provider of electromechanical and electronic manufacturing and distribution services, to transition the sourcing, procurement, order-fulfillment, manufacturing and return merchandise authorization activities in the Company's Seminole, Florida facility to Fabrinet. The transition to Fabrinet began in October 2022 and substantially completed in the beginning of 2023. Post transition, the DZS Seminole, Florida-based operations, supply chain and manufacturing workforce was reduced by approximately two-thirds and the remaining team was relocated to an appropriately sized facility. For the three months ended March 31, 2023, the Company recorded $3.5 million of restructuring related costs, consisting of freight and expedite fees of $1.0 million, facility and labor costs of $0.8 million, accelerated depreciation of manufacturing related assets of $0.4 million, termination-related benefits of $0.3 million, inventory write-off of $0.5 million, and other costs of $0.5 million. The above expenses were included in restructuring and other charges on the unaudited condensed consolidated statement of comprehensive income (loss). For the three months ended March 31, 2023, the Company also incurred certain maintenance costs related to impaired facilities and non-capitalizable implementation costs related to replacement of the Company’s legacy enterprise resource planning and reporting software. The Company included such costs in restructuring and other charges on the unaudited condensed consolidated statement of comprehensive income (loss). For the three months ended March 31, 2024, the Company incurred $0.3 million of restructuring related costs primarily related to Fabrinet transition and certain maintenance costs related to impaired facilities. The Company included such costs in restructuring and other charges on the unaudited condensed consolidated statement of comprehensive income (loss).

Net Loss Per Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Net Loss Per Share


	Three months ended March 31,
	2024		2023
Net loss	$	(18,706)	$	(23,817)
Loss from continuing operations	$	(13,535)	$	(20,035)
Loss from discontinued operations, net of income taxes	$	(5,171)	$	(3,782)
Weighted average number of shares outstanding:
Basic	37,399		31,045
Dilutive effect of equity based awards and warrants	—		—
Diluted	37,399		31,045
Net loss per share - basic
Continuing operations	$	(0.36)	$	(0.65)
Discontinued operations	$	(0.14)	$	(0.12)
Net loss per share - diluted
Continuing operations	$	(0.36)	$	(0.65)
Discontinued operations	$	(0.14)	$	(0.12)


	Three months ended March 31,
	2024	2023
Outstanding stock options	1,268	563
Unvested restricted stock units	8,017	500
Outstanding Warrants	6,100	—

Leases

3 Months Ended

Mar. 31, 2024

Leases [Abstract]

Leases

The following table presents the Company's future contractual rent obligations as of March 31, 2024 (in thousands):


Remainder of 2024	$	2,136
2025	1,953
2026	1,199
2027	956
2028	692

Total operating lease payments	6,936
Less: imputed interest	(380)
Total operating lease liabilities	$	6,556

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Plume On October 10, 2022, Plume Design, Inc. (“Plume”) filed suit against DZS in the Superior Court of the State of Delaware, alleging that DZS breached a reseller contract with Plume and seeking $24.75 million in damages. The parties have completed briefing on dispositive motions, and a trial is currently set for October 7, 2024. DZS intends to vigorously defend this lawsuit. Class Action In June and August of 2023, DZS shareholders filed three putative securities class actions related to DZS’s June 1, 2023, Form 8-K announcing the Company’s intention to restate its financial statements for the first quarter of 2023. Each suit was filed in the Eastern District of Texas. All three cases allege violations of Sections 10(b) and 20(a) of the Exchange Act against DZS, its Chief Executive Officer and its Chief Financial Officer. The cases are: (1) Shim v. DZS et al., filed June 14, 2023; (2) Link v. DZS et al., filed June 27, 2023; and (3) Cody v. DZS et al., filed August 9, 2023. Three potential lead plaintiffs filed applications for appointment on August 14, 2023. On September 12, 2023, the cases were consolidated under the lead case Shim v. DZS et al. The plaintiffs are seeking unspecified damages, interest, fees, costs and interest. As of July 31, 2024, the court has not yet ruled on the appointment of a lead plaintiff and the Defendants have not yet responded to any complaint. DZS intends to vigorously defend these lawsuits. In light of the events giving rise to the restatement, DZS began cooperating, and intends to continue to cooperate, with the U.S. Securities and Exchange Commission (the “SEC”), which has informed DZS that it is investigating potential violations of the federal securities laws related to DZS. On June 3, 2024, counsel for a shareholder of the Company sent the Company a demand for certain books and records related to events related to the Company’s June 1, 2023, Form 8-K. The demand was made pursuant to Section 220 of the Delaware General Corporation Law. While the Company does not concede the demand is proper, it has produced certain records to the shareholder. In addition to the matters discussed above, from time to time, the Company is subject to various legal proceedings, claims and litigation arising in the ordinary course of business. While the outcome of these matters is currently not determinable, the Company records an accrual for legal contingencies that it has determined to be probable to the extent that the amount of the loss can be reasonably estimated. The Company does not expect that the ultimate costs to resolve these matters will have a material adverse effect on its consolidated financial position, results of operations or cash flows. However, litigation is subject to inherent uncertainties, and unfavorable rulings could occur. If an unfavorable ruling were to occur, there exists the possibility of a material adverse impact on the results of operations and cash flows of the reporting period in which the ruling occurs, or future periods.

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense for the three months ended March 31, 2024 was approximately $1.1 million on pre-tax loss of $12.4 million. Income tax expense for the three months ended March 31, 2023 was approximately $2.5 million on pre-tax loss of $17.6 million. As of March 31, 2024, the income tax rate varied from the United States statutory income tax rate primarily due to valuation allowances in North America, and EMEA, mandatory R&D expense capitalization in the U.S., and foreign and state income tax rate differentials. Consistent with the prior periods, the Company continued to maintain valuation allowances in North America and EMEA. The total amount of unrecognized tax benefits, including interest and penalties, as of March 31, 2024 was $5.2 million. There were no significant changes to unrecognized tax benefits during the three months ended March 31, 2024. The Company does not anticipate any significant changes with respect to unrecognized tax benefits within the next twelve months

Enterprise-Wide Information

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Enterprise-Wide Information

The Company's property, plant and equipment, net of accumulated depreciation, were located in the following geographical areas (in thousands) as of March 31, 2024, and December 31, 2023:


	March 31, 2024		December 31, 2023
United States	$	2,550	$	2,838
Germany	120		144
Other	131		126
	$	2,801	$	3,108

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2024
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On May 3, 2024, the Company entered into a Share Purchase Agreement (the “Share Purchase Agreement”) with Casa Communications Holdings Pty Ltd, a private limited company registered in New South Wales, Australia (the “Seller”). Pursuant to the Share Purchase Agreement, the Company acquired all of the issued and outstanding share capital of NetComm Wireless Pty Ltd, a private limited company registered in New South Wales, Australia (“NetComm”) for a purchase price of approximately $8.1 million paid in cash. The purchase price also included a contingent consideration component based on the satisfaction of certain revenue thresholds for the period from January 1, 2024, to December 31, 2024. The maximum contingent consideration payable from the Company to the Seller is $3.0 million. The acquisition closed on June 1, 2024. On May 31, 2024, the Company, as borrower, entered into a Loan Agreement (the “EdgeCo Second Loan Agreement”) with EdgeCo, LLC, as lender. Pursuant to the EdgeCo Second Loan Agreement, the Company received a three-year term loan in an aggregate principal amount equal to $15.0 million. The principal amount of the Loan is payable on May 31, 2027, and bears interest at a fixed rate of 13.0% per annum. In connection with the EdgeCo Second Loan Agreement, (i) the Company extended the maturity date of the amounts owed under the EdgeCo Loan Agreement to May 31, 2027 and (ii) the Company also entered into a Warrant Agreement (the “Second Warrant Agreement”), dated as of May 31, 2024, by and between the Company and EdgeCo, that issued a warrant to EdgeCo to subscribe for 6,100,000 shares of Common Stock at an exercise price of $0.9095 per share. The loan was primarily used to finance the acquisition of NetComm and provide working capital to NetComm.

Organization and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) for interim financial information and with the instructions to Form 10-Q and Article 3 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. These financial statements include the accounts of the Company and its wholly owned subsidiaries. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements of the Company and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, filed with the Securities and Exchange Commission (“SEC”) on August 13, 2024. For a complete description of what the Company believes to be the critical accounting policies and estimates used in the preparation of its unaudited condensed consolidated financial statements, refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2023. Operating results of subsidiaries divested in conjunction with the Asia Sale were classified as discontinued operations in the unaudited condensed consolidated statements of comprehensive loss for all periods presented. Assets and liabilities of these subsidiaries were classified as assets and liabilities held for sale of the unaudited condensed consolidated balance sheets for all periods presented. All intercompany transactions and balances have been eliminated in consolidation. The unaudited condensed consolidated financial statements reflect all adjustments (consisting only of normal recurring adjustments) that, in the opinion of management, are necessary for a fair presentation of the results for the interim periods presented. The results of operations for the current interim period are not necessarily indicative of results to be expected for the current year or any other period.
Risks and Uncertainties	Risks and Uncertainties The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with U.S. GAAP, assuming the Company will continue as a going concern. We continue to be exposed to macroeconomic pressures in the post-COVID-19 environment, including concerns about energy costs, geopolitical issues, inflation, the availability and cost of credit, business and consumer confidence, and unemployment. We have seen improvement in our supply chain in 2024 as supply chain pricing, freight and logistics costs, product and component availability, and extended lead-times which were a challenge in prior years begin to alleviate. We expect elevated costs for components and expedite fees to further improve throughout 2024.
Use of Estimates	Use of EstimatesThe preparation of the unaudited condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ materially from those estimates.
Concentration of Risk	Concentration of Risk Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash, cash equivalents and restricted cash, accounts receivable, and contract assets. Cash, cash equivalents and restricted cash consist of financial deposits and money market accounts that are principally held with various domestic and international financial institutions with high credit standing. As of March 31, 2024, the Company had cash accounts in excess of Federal Deposit Insurance Corporation ("FDIC") insured limits. The Company’s customers include competitive and incumbent local exchange carriers, competitive access providers, internet service providers, wireless carriers and resellers serving these markets. The Company performs ongoing credit evaluations of its customers and generally does not require collateral. Allowances are maintained for credit losses based upon the expected collectability of accounts receivable using historical loss rates adjusted for customer-specific factors and current economic conditions. The Company determines historical loss rates on a rational and systematic basis. The Company performs periodic assessments of its customers’ liquidity and financial condition through analysis of information obtained from credit rating agencies, financial statement review and historical and current collection trends.
Business Combinations	Business Combinations We account for business combinations using the acquisition method, which requires the identification of the acquirer, the determination of the acquisition date and the allocation of the purchase price paid by the acquirer to the identifiable tangible and intangible assets acquired, the liabilities assumed, including any contingent consideration and any noncontrolling interest in the acquiree at their acquisition date fair values. Goodwill represents the excess of the purchase price over the fair value of net assets acquired, including the amount assigned to identifiable intangible assets. Identifiable intangible assets with finite lives are amortized over their expected useful lives. Acquisition-related costs are expensed in the periods in which the costs are incurred. The results of operations of acquired businesses are included in our consolidated financial statements from the acquisition date.
Restructuring and Other Charges	Restructuring and Other Charges From time to time, the Company takes actions to align its workforce, facilities and operating costs with perceived market opportunities, business strategies and changes in market and business conditions. The Company recognizes a liability for the cost associated with an exit or disposal activity in the period in which the liability is incurred, except for one-time employee termination benefits, which are measured at the communication date and recognized ratably over the required service period, if any.
Warrants	WarrantsThe Company accounts for warrant instruments as either equity-classified or liability-classified instruments based on an assessment of the specific terms of the warrants and applicable authoritative guidance in ASC 480 and ASC 815. The assessment considers whether the warrants are freestanding financial instruments pursuant to ASC 480, meet the definition of a liability pursuant to ASC 480, and meet all of the requirements for equity classification under ASC 815, including whether the warrants are indexed to the Company’s own stock and whether the holders of the warrants could potentially require “net cash settlement” in a circumstance outside of the Company’s control, among other conditions for equity classification. Upon issuance, warrants are initially measured at fair value.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In December 2023, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update ("ASU") 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which aims to address requests for improved income tax disclosures from investors that use the financial statements to make capital allocation decisions. The amendments in this ASU address the investor requests for more transparency of income tax information and apply to all entities that are subject to income taxes. The ASU is effective for years beginning after December 15, 2024, but early adoption is permitted. This ASU should be applied on a prospective basis, although retrospective application is permitted. Management is currently evaluating the impact of the changes required by the new standard on the Company's financial statements and related disclosures. In March 2024, the SEC issued Release Nos. 33-11275; 34-99678 "The Enhancement and Standardization of Climate-Related Disclosures for Investors", which require registrants to provide certain climate-related information in their registration statements and annual reports. The rules require information about a registrant's climate-related risks that are reasonably likely to have a material impact on its business, results of operations, or financial condition. The compliance date for this release was scheduled to be fiscal year 2027 for smaller reporting companies. On April 4, 2024, the SEC voluntarily stayed implementation of this new rule pending judicial review. The Company is currently analyzing the impact that the new climate-related rules will have on its consolidated financial statements and related disclosures.
Assets and Liabilities Held for Sale and Discontinued Operations	Assets and Liabilities Held for Sale and Discontinued Operations The Company classifies long-lived assets or disposal groups and related liabilities as held-for-sale when management having the appropriate authority, generally the Company's Board of Directors ("the Board") or certain Executive Officers, commits to a plan of sale, the disposal group is ready for immediate sale, an active program to locate a buyer has been initiated and the sale is probable and expected to be completed within one year. Once classified as held-for-sale, disposal groups are valued at the lower of their carrying amount or fair value less estimated selling costs. Depreciation on these properties is discontinued at the time they are classified as held for sale, but operating revenues, operating expenses and interest expense continue to be recognized until the date of disposal. The Company accounts for discontinued operations when there is a disposal of a component group or a group of components that represents a strategic shift that will have a major effect on the Company’s operations and financial results. The Company aggregates the results of operations for discontinued operations into a single line item in the interim condensed consolidated statements of operations and comprehensive loss for all periods presented.

Organization and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Revenues by Source

The following table presents revenues by product technology (in thousands):


	Three Months Ended March 31,
	2024		2023
Access Networking Infrastructure	$	20,232	$	35,005
Cloud Software & Services	7,435		9,362
Total	$	27,667	$	44,367

Schedule of Information Revenues by Geographical Concentration

The following table present revenues by geographical concentration (in thousands):


	Three Months Ended March 31,
	2024		2023
Americas	$	15,957	$	24,966
Europe, Middle East, Africa	10,823		18,054
Asia	887		1,347
Total	$	27,667	$	44,367

Schedule of Allowances for Doubtful Accounts

Activity under the Company’s allowance for credit losses consists of the following (in thousands):


	Three Months Ended March 31,
	2024		2023
Balance at beginning of period	$	4,282	$	2,971
Charged to expense, net of recoveries	(161)		(74)

Foreign currency exchange impact	(11)		8
Balance at end of period	$	4,110	$	2,905

Assets and Liabilities Held for Sale and Discontinued Operations (Tables)

3 Months Ended

Mar. 31, 2024

Discontinued Operations and Disposal Groups [Abstract]

Disposal Groups, Including Discontinued Operations


	Three Months Ended March 31,
	2024		2023
Net revenue	$	25,324	$	25,446
Cost of revenue	21,201		20,116
Gross profit	4,123		5,330
Operating expenses	8,801		10,452
Operating loss from discontinued operations	(4,678)		(5,122)
Interest expense, net	(981)		(168)
Other income, net	959		247
Loss from discontinuing operations before income taxes	(4,700)		(5,043)
Income tax provision (benefit)	471		(1,261)
Net loss from discontinued operations	$	(5,171)	$	(3,782)


	March 31, 2024		December 31, 2023
Assets
Current assets:
Cash, cash equivalents and restricted cash	$	3,812	$	5,657
Accounts receivable - trade, net of allowance for doubtful accounts	29,435		25,661
Other receivables	10,121		12,765
Inventories	44,172		49,114
Prepaid expenses and other current assets	1,838		1,178
Total current assets of discontinued operations	89,378		94,375
Property, plant and equipment, net	2,185		2,615
Right-of-use assets from operating leases	2,819		3,475
Intangible assets, net	419		419
Other assets	1,151		1,299
Total assets of discontinued operations	$	95,952	$	102,183
Liabilities
Current liabilities:
Accounts payable - trade	$	30,450	$	37,911
Short-term debt – bank, trade facilities and secured borrowings	25,622		19,633
Contract liabilities	785		1,041
Operating lease liabilities	1,595		1,858
Accrued and other liabilities	12,752		8,984
Total current liabilities of discontinued operations	71,204		69,427
Long-term debt	29,457		30,600
Contract liabilities - non-current	721		878
Operating lease liabilities - non-current	1,219		1,617
Other long-term liabilities	452		479
Total liabilities of discontinued operations	$	103,053	$	103,001

Fair Value Measurement (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Reconciliation of Level 3 Contingent Liability

The following table reconciles the beginning and ending balances of the Company’s Level 3 contingent liability (in thousands):


	Three Months Ended March 31,
	2024		2023
Balance at beginning of period	$	306	$	1,156

Net change in fair value	33		27
Balance at end of period	$	339	$	1,183

Balance Sheet Details (Tables)

3 Months Ended

Mar. 31, 2024

Balance Sheet Related Disclosures [Abstract]

Schedule of Inventories

Inventories


	March 31, 2024		December 31, 2023
Raw materials	$	14,781	$	18,133

Finished goods	17,026		14,980
Total inventories	$	31,807	$	33,113

Schedule of Property, Plant and Equipment

Property, plant and equipment


	March 31, 2024		December 31, 2023
Machinery and equipment	$	3,910	$	3,903
Leasehold improvements	1,317		1,321
Computers and software	1,315		1,302
Furniture and fixtures	1,642		1,656
Construction in progress and other	56		13
	8,240		8,195
Less: accumulated depreciation and amortization	(5,439)		(5,087)
Total property, plant and equipment, net	$	2,801	$	3,108

Summary of Product Warranty Liability

The following table summarizes the activity related to the product warranty liability:


	Three Months Ended March 31,
	2024		2023
Balance at beginning of period	$	1,148	$	1,401
Charged to cost of revenue	(614)		(42)

Foreign currency exchange impact	(5)		10
Balance at end of period	$	529	$	1,369

Summary of Contract Assets and Contract Liabilities Related to Contracts with Customers

The opening and closing balances of current and long-term contract assets and contract liabilities related to contracts with customers are as follows:


	Contract assets		Contract liabilities
December 31, 2023	$	825	$	17,779
March 31, 2024	$	756	$	16,846

Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

Intangible assets consisted of the following (in thousands):


	March 31, 2024
	Gross Carrying Amount		Accumulated Amortization		Net
Customer relationships	$	19,090	$	(4,244)	$	14,846
Customer backlog	5,100		(1,591)		3,509
Developed technology	8,147		(3,199)		4,948
In-process research and development	890		(563)		327
Tradenames	300		(55)		245
Total intangible assets, net	$	33,527	$	(9,652)	$	23,875


	December 31, 2023
	Gross Carrying Amount		Accumulated Amortization		Net
Customer relationships	$	19,090	$	(3,682)	$	15,408
Customer backlog	5,100		(1,374)		3,726
Developed technology	8,147		(2,839)		5,308
In-process research and development	890		(519)		371
Tradenames	300		(48)		252
Total intangible assets, net	$	33,527	$	(8,462)	$	25,065

Future Amortization Expense of Intangible Assets

The following table presents the future amortization expense of the Company’s intangible assets as of March 31, 2024 (in thousands):


Remainder of 2024	$	3,568
2025	4,753
2026	3,746
2027	3,143
2028	2,401
Thereafter	6,264
Total	$	23,875

Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Reconciliation of Basic and Diluted Net Loss per Share


	Three months ended March 31,
	2024		2023
Net loss	$	(18,706)	$	(23,817)
Loss from continuing operations	$	(13,535)	$	(20,035)
Loss from discontinued operations, net of income taxes	$	(5,171)	$	(3,782)
Weighted average number of shares outstanding:
Basic	37,399		31,045
Dilutive effect of equity based awards and warrants	—		—
Diluted	37,399		31,045
Net loss per share - basic
Continuing operations	$	(0.36)	$	(0.65)
Discontinued operations	$	(0.14)	$	(0.12)
Net loss per share - diluted
Continuing operations	$	(0.36)	$	(0.65)
Discontinued operations	$	(0.14)	$	(0.12)

Potential Common Stock Not Included Diluted Net Income (Loss) Per Share Calculation


	Three months ended March 31,
	2024	2023
Outstanding stock options	1,268	563
Unvested restricted stock units	8,017	500
Outstanding Warrants	6,100	—

Leases (Tables)

3 Months Ended

Mar. 31, 2024

Leases [Abstract]

Maturity of Operating Lease Liabilities

The following table presents the Company's future contractual rent obligations as of March 31, 2024 (in thousands):


Remainder of 2024	$	2,136
2025	1,953
2026	1,199
2027	956
2028	692

Total operating lease payments	6,936
Less: imputed interest	(380)
Total operating lease liabilities	$	6,556

Enterprise-Wide Information (Tables)

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Property, Plant and Equipment, Net of Accumulated Depreciation by Geographical Area

The Company's property, plant and equipment, net of accumulated depreciation, were located in the following geographical areas (in thousands) as of March 31, 2024, and December 31, 2023:


	March 31, 2024		December 31, 2023
United States	$	2,550	$	2,838
Germany	120		144
Other	131		126
	$	2,801	$	3,108

Organization and Summary of Significant Accounting Policies - Schedule of Revenues by Source (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Net revenue	$ 27,667	$ 44,367
Access Networking Infrastructure
Disaggregation of Revenue [Line Items]
Net revenue	20,232	35,005
Cloud Software & Services
Disaggregation of Revenue [Line Items]
Net revenue	$ 7,435	$ 9,362

Organization and Summary of Significant Accounting Policies - Schedule of Information Revenues by Geographical Concentration (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Net revenue	$ 27,667	$ 44,367
Americas
Disaggregation of Revenue [Line Items]
Net revenue	15,957	24,966
Europe, Middle East, Africa
Disaggregation of Revenue [Line Items]
Net revenue	887	1,347
Asia
Disaggregation of Revenue [Line Items]
Net revenue	$ 10,823	$ 18,054

Organization and Summary of Significant Accounting Policies - Schedule of Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 4,282	$ 2,971
Charged to expense, net of recoveries	(161)	(74)
Foreign currency exchange impact	(11)	8
Balance at end of period	$ 4,110	$ 2,905

Organization and Summary of Significant Accounting Policies - Additional Information (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Customer Concentration Risk \| Sales Revenue, Net \| Customer One
Significant Accounting Policies [Line Items]
Concentration risk, percentage	13.00%	15.00%
Customer Concentration Risk \| Sales Revenue, Net \| Customer Two
Significant Accounting Policies [Line Items]
Concentration risk, percentage	13.00%
Customer Concentration Risk \| Accounts receivable \| Customer One
Significant Accounting Policies [Line Items]
Concentration risk, percentage	19.00%		10.00%
Customer Concentration Risk \| Accounts receivable \| Customer Two
Significant Accounting Policies [Line Items]
Concentration risk, percentage	13.00%
Geographic Concentration Risk \| Accounts receivable \| Foreign Countries
Significant Accounting Policies [Line Items]
Concentration risk, percentage	68.00%		74.00%

Assets and Liabilities Held for Sale and Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended
	Apr. 05, 2024	Mar. 31, 2024	Mar. 31, 2023
DZS, Inc \| Affiliated Entity \| Dasan Networks, Inc.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
DNI direct ownership interest		24.10%
Disposal Group, Held-for-Sale, Not Discontinued Operations \| DASAN Network Solutions, Inc., D-Mobile Limited, DZS Vietnam, Dasan India Private Limited, And DZS Japan
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue		$ 25,324	$ 25,446
Cost of revenue		21,201	20,116
Disposal Group, Held-for-Sale, Not Discontinued Operations \| DASAN Network Solutions, Inc., D-Mobile Limited, DZS Vietnam, Dasan India Private Limited, And DZS Japan \| Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash proceeds from divestiture	$ 3,800
Disposal Group, Held-for-Sale, Not Discontinued Operations \| DASAN Network Solutions, Inc., D-Mobile Limited, DZS Vietnam, Dasan India Private Limited, And DZS Japan \| Subsequent Event \| DNS Korea \| Master Engineering Services Agreement
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Annual purchase commitment	$ 2,500
Term of service agreement	7 years
Term of service agreement renewal	12 months
Expiration period	3 years
Required notice of termination	180 days
Disposal Group, Held-for-Sale, Not Discontinued Operations \| DASAN Network Solutions, Inc., D-Mobile Limited, DZS Vietnam, Dasan India Private Limited, And DZS Japan \| Subsequent Event \| DNS Korea \| Master Supply Agreement
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Term of service agreement	3 years
Term of service agreement renewal	1 year
Disposal Group, Held-for-Sale, Not Discontinued Operations \| DASAN Network Solutions, Inc., D-Mobile Limited, DZS Vietnam, Dasan India Private Limited, And DZS Japan \| Subsequent Event \| DNS Korea \| Reseller Agreement
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Term of service agreement	7 years
Term of service agreement renewal	12 months
Disposal Group, Held-for-Sale, Not Discontinued Operations \| DASAN Network Solutions, Inc., D-Mobile Limited, DZS Vietnam, Dasan India Private Limited, And DZS Japan \| Subsequent Event \| DNS Korea \| Master Services Agreement
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Term of service agreement	1 year
Term of service agreement renewal	12 months
Required notice of termination	60 days
Disposal Group, Held-for-Sale, Not Discontinued Operations \| DASAN Network Solutions, Inc., D-Mobile Limited, DZS Vietnam, Dasan India Private Limited, And DZS Japan \| DNI Loan Agreements \| Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Debt eliminated in divestiture	$ 34,000
Disposal Group, Held-for-Sale, Not Discontinued Operations \| DASAN Network Solutions, Inc., D-Mobile Limited, DZS Vietnam, Dasan India Private Limited, And DZS Japan \| DNI Loan Agreements \| Investor
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue		400	200
Cost of revenue		300	$ 100
Long-term debt classified as held-for-sale		$ 34,000

Assets and Liabilities Held for Sale and Discontinued Operations - Amounts reported in the Unaudited Condensed Consolidated Statement of Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net loss from discontinued operations	$ (5,171)	$ (3,782)
DASAN Network Solutions, Inc., D-Mobile Limited, DZS Vietnam, Dasan India Private Limited, And DZS Japan \| Disposal Group, Held-for-Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue	25,324	25,446
Cost of revenue	21,201	20,116
Gross profit	4,123	5,330
Operating expenses	8,801	10,452
Operating loss from discontinued operations	(4,678)	(5,122)
Interest expense, net	(981)	(168)
Other income, net	959	247
Loss from discontinuing operations before income taxes	(4,700)	(5,043)
Income tax provision (benefit)	471	(1,261)
Net loss from discontinued operations	$ (5,171)	$ (3,782)

Assets and Liabilities Held for Sale and Discontinued Operations - Amounts reported in the Unaudited Condensed Consolidated Balance Sheet as held-for-sale (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Total current assets of discontinued operations	$ 89,378	$ 94,375
Current liabilities:
Total current liabilities of discontinued operations	71,204	69,427
DASAN Network Solutions, Inc., D-Mobile Limited, DZS Vietnam, Dasan India Private Limited, And DZS Japan \| Disposal Group, Held-for-Sale, Not Discontinued Operations
Current assets:
Cash, cash equivalents and restricted cash	3,812	5,657
Accounts receivable - trade, net of allowance for doubtful accounts	29,435	25,661
Other receivables	10,121	12,765
Inventories	44,172	49,114
Prepaid expenses and other current assets	1,838	1,178
Total current assets of discontinued operations	89,378	94,375
Property, plant and equipment, net	2,185	2,615
Right-of-use assets from operating leases	2,819	3,475
Intangible assets, net	419	419
Other assets	1,151	1,299
Total assets of discontinued operations	95,952	102,183
Current liabilities:
Accounts payable - trade	30,450	37,911
Short-term debt – bank, trade facilities and secured borrowings	25,622	19,633
Contract liabilities	785	1,041
Operating lease liabilities	1,595	1,858
Accrued and other liabilities	12,752	8,984
Total current liabilities of discontinued operations	71,204	69,427
Long-term debt	29,457	30,600
Contract liabilities - non-current	721	878
Operating lease liabilities - non-current	1,219	1,617
Other long-term liabilities	452	479
Total liabilities of discontinued operations	$ 103,053	$ 103,001

Business Combinations - Additional Information (Details) - ASSIA - USD ($) $ in Thousands		3 Months Ended
	May 27, 2022	Mar. 31, 2024
Business Acquisition [Line Items]
Purchase price of acquisition	$ 23,700
Held back amount	$ 2,500
Acquired goodwill		$ 6,400

Fair Value Measurement - Schedule of Reconciliation of Level 3 Contingent Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 306	$ 1,156
Net change in fair value	33	27
Balance at end of period	$ 339	$ 1,183

Cash, Cash Equivalents and Restricted Cash - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 2,636	$ 13,822	$ 22,046
Within U.S.
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	2,200	$ 13,400
Outside U.S.
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 1,700

Balance Sheet Details - Schedule of Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Balance Sheet Related Disclosures [Abstract]
Raw materials	$ 14,781	$ 18,133
Finished goods	17,026	14,980
Total inventories	$ 31,807	$ 33,113

Balance Sheet Details - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2023
Balance Sheet Details [Line Items]
Reversal of inventory write-down			$ 3,800
Inventory write-down provision (recovery)	$ (3,815)	$ 796	$ 800
Standard product warranty, term	1 year
Extended product warranty, term (up to)	5 years
Contract with customer, liability, revenue recognized	$ 4,900	7,500
Contract cost deferred	1,100			$ 1,000
Amortization related to contract cost deferred	$ 100	400
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Balance Sheet Details [Line Items]
Percentage of revenue expected to recognize	88.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-04-01
Balance Sheet Details [Line Items]
Percentage of revenue expected to recognize	12.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period
Property, Plant and Equipment
Balance Sheet Details [Line Items]
Depreciation and amortization associated with property, plant and equipment	$ 400	$ 900

Balance Sheet Details - Schedule of Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, plant and equipment, net:
Property, plant and equipment	$ 8,240	$ 8,195
Less: accumulated depreciation and amortization	(5,439)	(5,087)
Total property, plant and equipment, net	2,801	3,108
Machinery and equipment
Property, plant and equipment, net:
Property, plant and equipment	3,910	3,903
Leasehold improvements
Property, plant and equipment, net:
Property, plant and equipment	1,317	1,321
Computers and software
Property, plant and equipment, net:
Property, plant and equipment	1,315	1,302
Furniture and fixtures
Property, plant and equipment, net:
Property, plant and equipment	1,642	1,656
Construction in progress and other
Property, plant and equipment, net:
Property, plant and equipment	$ 56	$ 13

Balance Sheet Details - Summary of Product Warranty Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]
Balance at beginning of period	$ 1,148	$ 1,401
Charged to cost of revenue	(614)	(42)
Foreign currency exchange impact	(5)	10
Balance at end of period	$ 529	$ 1,369

Balance Sheet Details - Summary of Contract Assets and Contract Liabilities Related to Contracts with Customers (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Balance Sheet Related Disclosures [Abstract]
Contract assets	$ 756	$ 825
Contract liabilities	$ 16,846	$ 17,779

Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 33,527	$ 33,527
Accumulated Amortization	(9,652)	(8,462)
Total	23,875	25,065
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	19,090	19,090
Accumulated Amortization	(4,244)	(3,682)
Total	14,846	15,408
Customer backlog
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,100	5,100
Accumulated Amortization	(1,591)	(1,374)
Total	3,509	3,726
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,147	8,147
Accumulated Amortization	(3,199)	(2,839)
Total	4,948	5,308
In-process research and development
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	890	890
Accumulated Amortization	(563)	(519)
Total	327	371
Tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	300	300
Accumulated Amortization	(55)	(48)
Total	$ 245	$ 252

Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 1,190	$ 1,271
Goodwill, accumulated impairment	$ 13,600		$ 13,600

Goodwill and Intangible Assets - Future Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2024	$ 3,568
2025	4,753
2026	3,746
2027	3,143
2028	2,401
Thereafter	6,264
Total	$ 23,875	$ 25,065

Debt - Additional Information (Details) - USD ($)	Dec. 29, 2023	May 08, 2023	Feb. 15, 2023	May 27, 2022	Mar. 31, 2024	Dec. 31, 2023	Jun. 15, 2023	Feb. 09, 2022
Line of Credit Facility [Line Items]
Common stock, par value (in dollars per share)					$ 0.001	$ 0.001
Exercise price of warrant shares	$ 1.84
Debt obligations					$ 7,641,000	$ 7,308,000
Minimum EBITDA for the fiscal quarter ending March 31, 2023			$ 1,000,000
Minimum EBITDA for the fiscal quarter ending June 30, 2023			$ 1
EdgeCo Warrant Agreement
Line of Credit Facility [Line Items]
Shares subscribed by warrant	6,100,000
Leverage Ratio Exceeds 2.5
Line of Credit Facility [Line Items]
Commitment fee percentage on unused capacity			0.40%
EdgeCo Loan Agreement \| EdgeCo Warrant
Line of Credit Facility [Line Items]
Value of warrant outstanding					7,200,000
EdgeCo Loan Agreement \| Secured Debt
Line of Credit Facility [Line Items]
Principal amount of loan	$ 15,000,000
Term of loan agreement	3 years
Interest rate	13.00%
Common stock, par value (in dollars per share)	$ 0.001
Debt obligations					$ 7,600,000
Unamortized debt discount	$ 7,200,000
Unamortized issuance costs	200,000
EdgeCo Loan Agreement \| Maximum \| Secured Debt
Line of Credit Facility [Line Items]
Preemptive right of refusal for additional debt (up to)	$ 15,000,000
Termination ownership threshold for preemptive first right of refusal	4.90%
Second Amendment to Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Leverage ratio (in excess of)			250.00%
Maximum leverage ratio through September 30, 2023			250.00%
Minimum fixed charge coverage ratio until December 31, 2023			125.00%
Minimum required liquidity, fiscal quarter ending March 31, 2023			$ 30,000,000
Minimum required liquidity, fiscal quarter ending June 30, 2023 and September 30, 2023			35,000,000
Minimum required liquidity, any time until September 30, 2023			$ 20,000,000
Second Amendment to Credit Agreement \| Adjusted Term SOFR Rate \| Line of Credit \| Leverage Ratio Exceeds 2.5
Line of Credit Facility [Line Items]
Margins for borrowings			4.00%
Second Amendment to Credit Agreement \| Prime Rate \| Line of Credit \| Leverage Ratio Exceeds 2.5
Line of Credit Facility [Line Items]
Margins for borrowings			3.00%
Third Amendment to Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Leverage ratio (in excess of)		250.00%
Minimum EBITDA for the fiscal quarter ending March 31, 2023		$ 1,000,000
Borrowing base decrease through June 30, 2023		5,000,000
Additional borrowing base decrease after June 30, 2023		$ 5,000,000
Third Amendment to Credit Agreement \| Adjusted Term SOFR Rate \| Line of Credit \| Leverage Ratio Exceeds 2.5
Line of Credit Facility [Line Items]
Margins for borrowings		4.50%
Third Amendment to Credit Agreement \| Prime Rate \| Line of Credit \| Leverage Ratio Exceeds 2.5
Line of Credit Facility [Line Items]
Margins for borrowings		3.50%
JPMorgan Credit Facility \| Letter of Credit
Line of Credit Facility [Line Items]
Maximum borrowing amount								$ 15,000,000.0
Revolving Credit Agreement
Line of Credit Facility [Line Items]
Maximum borrowing amount				$ 30,000,000.0
Revolving Credit Agreement \| Third Amendment to Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing amount							$ 25,000,000
Revolving Credit Agreement \| JPMorgan Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing amount								30,000,000.0
Credit facility, current borrowing capacity								$ 10,000,000.0
Amendment to Credit Agreement
Line of Credit Facility [Line Items]
Maximum permitted leverage ratio through September 30, 2022				3.00
Maximum permitted leverage ratio through September 30, 2023				2.50
Maximum permitted leverage ratio after September 30 2023				2.00
Minimum permitted fixed charge coverage ratio				1.25
Amendment to Credit Agreement \| Minimum
Line of Credit Facility [Line Items]
Commitment fee percentage on unused capacity				0.25%
Amendment to Credit Agreement \| Maximum
Line of Credit Facility [Line Items]
Commitment fee percentage on unused capacity				0.35%
Amendment to Credit Agreement \| Adjusted Term SOFR Rate \| Minimum
Line of Credit Facility [Line Items]
Margins for borrowings				3.00%
Amendment to Credit Agreement \| Adjusted Term SOFR Rate \| Maximum
Line of Credit Facility [Line Items]
Margins for borrowings				3.50%
Amendment to Credit Agreement \| Prime Rate \| Minimum
Line of Credit Facility [Line Items]
Margins for borrowings				2.00%
Amendment to Credit Agreement \| Prime Rate \| Maximum
Line of Credit Facility [Line Items]
Margins for borrowings				2.50%
Amendment to Credit Agreement \| Letter of Credit \| Minimum
Line of Credit Facility [Line Items]
Commitment fee percentage				3.00%
Amendment to Credit Agreement \| Letter of Credit \| Maximum
Line of Credit Facility [Line Items]
Commitment fee percentage				3.50%
Amendment to Credit Agreement \| Term Loan
Line of Credit Facility [Line Items]
Maximum borrowing amount				$ 25,000,000.0

Employee Benefit Plans - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Periodic benefit costs	$ 0.1	$ 0.1
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, insurance contract amount	2.2
UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan expense	0.2	$ 0.3
GERMANY
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, accumulated benefit obligation	$ 11.1		$ 11.5

Restructuring and Other Charges - Additional Information (Details) - Seminole Restructuring - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Restructuring Cost And Reserve [Line Items]
Estimated percentage of positions eliminated	66.67%
Restructuring costs	$ 0.3	$ 3.5
Accelerated depreciation		0.4
Freight and Expedite Fees
Restructuring Cost And Reserve [Line Items]
Restructuring costs		1.0
Facility and Labor Costs
Restructuring Cost And Reserve [Line Items]
Restructuring costs		0.8
Employee Severance
Restructuring Cost And Reserve [Line Items]
Restructuring costs		0.3
Inventory Write-Off
Restructuring Cost And Reserve [Line Items]
Restructuring costs		0.5
Other Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring costs		$ 0.5

Net Loss Per Share - Reconciliation of Basic and Diluted Net Income (Loss) per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Net loss	$ (18,706)	$ (23,817)
Net Loss from continuing operations	(13,535)	(20,035)
Loss from discontinued operations, net of income tax provision	$ (5,171)	$ (3,782)
Weighted average number of shares outstanding:
Basic (in shares)	37,399,000	31,045,000
Dilutive effect of equity based awards and warrants
Dilutive effect of equity based awards and warrants (in shares)	0	0
Diluted (in shares)	37,399,000	31,045,000
Net loss per share - basic
Continuing operations, basic (in dollars per share)	$ (0.36)	$ (0.65)
Discontinued operations, basic (in dollar per share)	(0.14)	(0.12)
Net loss per share - diluted
Continuing operations, diluted (in dollar per share)	(0.36)	(0.65)
Discontinued operations, diluted (in dollars per share)	$ (0.14)	$ (0.12)

Net Loss Per Share - Antidilutive Securities Excluded from Computation of Earning Per Share (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Outstanding stock options
Antidilutive Securities Excluded From Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of loss per share calculation (in shares)	1,268	563
Unvested restricted stock units
Antidilutive Securities Excluded From Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of loss per share calculation (in shares)	8,017	500
Outstanding Warrants
Antidilutive Securities Excluded From Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of loss per share calculation (in shares)	6,100	0

Leases - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Operating lease expense	$ 0.5	$ 0.6

Leases - Maturity of Operating Lease Liabilities (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Leases [Abstract]
Remainder of 2024	$ 2,136
2025	1,953
2026	1,199
2027	956
2028	692
Total operating lease payments	6,936
Less: imputed interest	(380)
Total operating lease liabilities	$ 6,556

Commitments and Contingencies - Additional Information (Details) $ in Thousands	Oct. 10, 2022 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Damages sought in litigation	$ 24,750

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 1,106	$ 2,452
Income (loss) before income taxes	(12,429)	$ (17,583)
Unrecognized tax benefits	$ 5,200

Enterprise-Wide Information - Property, Plant and Equipment, Net of Accumulated Depreciation (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 2,801	$ 3,108
UNITED STATES
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	2,550	2,838
Germany
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	120	144
Other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 131	$ 126

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	Jun. 01, 2024	May 31, 2024	Dec. 29, 2023
Subsequent Event [Line Items]
Exercise price of warrant shares			$ 1.84
Subsequent Event \| Second EdgeCo Warrant Agreement
Subsequent Event [Line Items]
Shares subscribed by warrant		6,100,000
Exercise price of warrant shares		$ 0.9095
Subsequent Event \| Second EdgeCo Loan Agreement \| Secured Debt
Subsequent Event [Line Items]
Term of loan agreement		3 years
Principal amount of loan		$ 15.0
Interest rate		13.00%
Netcomm Wireless Pty Ltd \| Subsequent Event
Subsequent Event [Line Items]
Purchase price of acquisition	$ 8.1
Maximum earnout amount payable	$ 3.0

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