CZNC Citizens and Northern Corporation

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

BASIS OF CONSOLIDATION - The consolidated financial statements include the accounts of Citizens & Northern Corporation and its subsidiaries, Citizens & Northern Bank (“C&N Bank”), Bucktail Life Insurance Company and Citizens & Northern Investment Corporation (collectively, “Corporation”), as well as C&N Bank’s wholly-owned subsidiary, C&N Financial Services Corporation. In December 2018, C&N Bank established a new entity, Northern Tier Holding LLC, for the purpose of acquiring, holding and disposing of real property acquired by C&N Bank. C&N Bank is the sole member of Northern Tier Holding LLC. All material intercompany balances and transactions have been eliminated in consolidation.

NATURE OF OPERATIONS - The Corporation provides banking and related services to individual and corporate customers. Lending products include commercial, mortgage and consumer loans, as well as specialized instruments such as commercial letters-of-credit. Deposit products include various types of checking accounts, passbook and statement savings, money market accounts, interest checking accounts, Individual Retirement Accounts and certificates of deposit. As discussed further in Note 3, in 2019 the Corporation expanded its primary market area from its historic concentration in northcentral Pennsylvania and southern New York State by acquiring Monument Bancorp, Inc. (“Monument”) with offices in Southeastern Pennsylvania. In 2019, the Corporation also expanded into south central Pennsylvania by opening a lending office in York.

The Corporation provides Trust and Financial Management services, including administration of trusts and estates, retirement plans, and other employee benefit plans, and investment management services. The Corporation offers a variety of personal and commercial insurance products through C&N Financial Services Corporation. C&N Financial Services Corporation also offers mutual funds, annuities, educational savings accounts and other investment products through registered agents.

Management has determined that the Corporation has one reportable segment, “Community Banking.” All of the Corporation’s activities are interrelated, and each activity is dependent and assessed based on how each of the activities of the Corporation supports the others.

The Corporation is subject to competition from other financial institutions. It is also subject to regulation by certain federal and state agencies and undergoes periodic examination by those regulatory authorities. As a consequence, the Corporation’s business is particularly susceptible to being affected by future federal and state legislation and regulations.

USE OF ESTIMATES - The financial information is presented in accordance with generally accepted accounting principles and general practice for financial institutions in the United States of America (“U.S. GAAP”). In preparing financial statements, management is required to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements. In addition, these estimates and assumptions affect revenues and expenses in the financial statements and as such, actual results could differ from those estimates.

Material estimates that are particularly susceptible to change include: (1) the allowance for loan losses, (2) fair values of debt securities based on estimates from independent valuation services or from brokers and (3) assessment of impaired securities to determine whether or not the securities are other-than-temporarily impaired.

INVESTMENT SECURITIES - Investment securities are accounted for as follows:

Available-for-sale debt securities - includes debt securities not classified as held-to-maturity or trading. Such securities are reported at fair value, with unrealized gains and losses excluded from earnings and reported separately through accumulated other comprehensive income (loss), net of tax. Premiums on non-amortizing available-for-sale debt securities are amortized using the level yield method to the earliest call date, while discounts on non-amortizing securities are amortized to the maturity date. Premiums and discounts on amortizing securities (mortgage-backed securities) are amortized using the level yield method over the remaining contractual life of the securities, adjusted for actual prepayments. Realized gains and losses on sales of available-for-sale securities are computed on the basis of specific identification of the adjusted cost of each security. Securities within the available-for-sale portfolio may be used as part of the Corporation’s asset and liability management strategy and may be sold in response to changes in interest rate risk, prepayment risk or other factors.

Other-than-temporary impairment – Credit-related declines in the fair value of available-for-sale debt securities that are deemed to be other-than-temporary are reflected in earnings as realized losses. In estimating other-than-temporary impairment (OTTI) losses, management considers (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial condition and near-term prospects of the issuer, (3) the intent and ability of the Corporation to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value, and (4) whether the Corporation intends to sell the security or if it is more likely than not that the Corporation will be required to sell the security before the recovery of its amortized cost basis. The credit-related impairment is recognized in earnings and is the difference between a security’s amortized cost basis and the present value of expected future cash flows discounted at the security’s effective interest rate. For debt securities classified as held-to-maturity, if any, the amount of noncredit-related impairment is recognized in other comprehensive income and accreted over the remaining life of the debt security as an increase in the carrying value of the security.

Marketable equity security – The marketable equity security is carried at fair value with unrealized gains and losses included in other noninterest income in the consolidated statements of income.

Restricted equity securities - Restricted equity securities consist primarily of Federal Home Loan Bank of Pittsburgh stock, and are carried at cost and evaluated for impairment. Holdings of restricted equity securities are included in Other Assets in the consolidated balance sheets, and dividends received on restricted securities are included in Other Income in the consolidated statements of income.

LOANS HELD FOR SALE - Mortgage loans held for sale are reported at the lower of cost or market, determined in the aggregate.

LOANS RECEIVABLE - Loans originated by the Corporation which management has the intent and ability to hold for the foreseeable future or until maturity or payoff are stated at unpaid principal balances, less the allowance for loan losses and net deferred loan fees. Interest income is accrued on the unpaid principal balance. Loan origination and commitment fees, as well as certain direct origination costs, are deferred and amortized as a yield adjustment over the lives of the related loans using the interest method.

The loans receivable portfolio is segmented into residential mortgage, commercial and consumer loans. The residential mortgage segment includes the following classes: first and junior lien residential mortgages, home equity lines of credit and residential construction loans. The most significant classes of commercial loans are commercial loans secured by real estate, non-real estate secured commercial and industrial loans, loans to political subdivisions, commercial construction, multi-family residential and loans secured by farmland.

Loans are placed on nonaccrual status for all classes of loans when, in the opinion of management, collection of interest is doubtful. Any unpaid interest previously accrued on those loans is reversed from income. Interest income is not recognized on specific impaired loans unless the likelihood of further loss is remote. Interest payments received on loans for which the risk of further loss is greater than remote are applied as a reduction of the loan principal balance. Interest income on other nonaccrual loans is recognized only to the extent of interest payments received. Generally, loans are restored to accrual status when the obligation is brought current, has performed in accordance with the contractual terms for a reasonable period of time (generally six months) and the ultimate collectability of the total contractual principal and interest is no longer in doubt. The past due status of all classes of loans receivable is determined based on contractual due dates for loan payments. Also, the amortization of deferred loan fees is discontinued when a loan is placed on nonaccrual status.

PURCHASED LOANS – The Corporation purchased loans in connection with its acquisition of Monument, some of which had, at the acquisition date of April 1, 2019, shown evidence of credit deterioration since origination. The Corporation considers several factors as indicators that an acquired loan has evidence of deterioration in credit quality. These factors include loans 90 days or more past due, loans with an internal risk rating of substandard or below, loans classified as nonaccrual by the acquired institution and loans that have been previously modified in a troubled debt restructuring. The purchased loans that showed evidence of credit impairment were designated as the purchased credit impaired (“PCI”) loans and were recorded at fair value, with no carryover of the allowance for loan losses. The PCI loans acquired are secured by real estate and the fair value of each loan at the acquisition date was determined based on the estimated proceeds to be derived from selling the collateral, net of selling costs. The PCI loans were placed into nonaccrual status upon acquisition (and remained in nonaccrual status at December 31, 2019) as the Corporation cannot reasonably estimate cash flows expected to be collected in order to compute yield on the loans.

For purchased loans that did not show evidence of credit deterioration at the acquisition date, the difference between the fair value of the loan at the acquisition date and the loan’s contractual amount is being amortized as a yield adjustment over the estimated remaining life of the loan using the effective interest method.

ALLOWANCE FOR LOAN LOSSES - The allowance for loan losses represents management’s estimate of losses inherent in the loan portfolio as of the balance sheet date and is recorded as a reduction to loans. The allowance for loan losses is increased by the provision for loan losses, and decreased by charge-offs, net of recoveries. Loans deemed to be uncollectible are charged against the allowance for loan losses, and subsequent recoveries, if any, are credited to the allowance. All, or part, of the principal balance of loans receivable are charged off to the allowance as soon as it is determined that the collection of all, or part, of the principal balance is highly unlikely. Non-residential consumer loans are generally charged off no later than when they are 120 days past due on a contractual basis, or earlier in the event of bankruptcy or if there is an amount deemed uncollectible.

The allowance for loan losses is maintained at a level considered adequate to provide for losses that can be reasonably anticipated. Management performs a quarterly evaluation of the adequacy of the allowance. The allowance is based on the Corporation’s past loan loss experience, known and inherent risks in the portfolio, adverse situations that may affect the borrower’s ability to repay, the estimated value of any underlying collateral, composition of the loan portfolio, current economic conditions and other relevant factors. This evaluation is inherently subjective as it requires material estimates that may be susceptible to significant revision as more information becomes available. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Corporation’s allowance for loan losses. Such agencies may require the Corporation to recognize adjustments to the allowance based on their judgments of information available to them at the time of their examination. In the process of evaluating the loan portfolio, management also considers the Corporation’s exposure to losses from unfunded loan commitments. As of December 31, 2019 and 2018, management determined that no allowance for credit losses related to unfunded loan commitments was required.

The allowance consists primarily of two major components – (1) a specific component based on a detailed assessment of certain larger loan relationships, mainly commercial purpose, determined on a loan-by-loan basis; and (2) a general component for the remainder of the portfolio, except for the performing loans purchased in 2019 from Monument, based on a collective evaluation of pools of loans with similar risk characteristics. The general component is assigned to each pool of loans based on both historical net charge-off experience, and an evaluation of certain qualitative factors. An unallocated component is maintained to cover uncertainties that could affect management’s estimate of probable losses. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the above methodologies for estimating specific and general losses in the portfolio.

The specific component relates to loans that are classified as impaired based on a detailed assessment of certain larger loan relationships evaluated by a management committee referred to as the Watch List Committee. Specific loan relationships are identified for evaluation based on the related credit risk rating. For individual loans classified as impaired, an allowance is established when the collateral value less estimated selling costs, present value of discounted cash flows or observable market price of the impaired loan is lower than the carrying value of that loan.

The scope of loans reviewed individually each quarter to determine if they are impaired include all commercial loan relationships greater than $200,000 and any residential mortgage or consumer loans of $400,000 or more for which there is at least one extension of credit graded Special Mention, Substandard or Doubtful. Loans that are individually reviewed, but which are determined to not be impaired, are combined with all remaining loans that are not reviewed on a specific basis, and such loans are included within larger pools of loans based on similar risk and loss characteristics for purposes of determining the general component of the allowance. All loans classified as troubled debt restructurings and all commercial loan relationships less than $200,000 or other loan relationships less than $400,000 in the aggregate, but with an estimated loss of $100,000 or more, are individually evaluated for impairment.

Loans acquired from Monument that did not show evidence of credit deterioration at the acquisition date (April 1, 2019) were initially recorded at fair value, including a discount for credit losses reflecting an estimate of the present value of credit losses based on market expectations. None of the performing loans purchased were impaired at December 31, 2019, and these purchased performing loans were excluded from the loan pools for which the general component of the allowance for loan losses was calculated. A provision for loan losses on purchased performing loans would be recognized only when the required allowance for loan losses or charge-off would exceed any remaining purchase discount at the loan level.

The general component covers pools of loans by loan class including commercial loans not considered individually impaired, as well as smaller balance homogeneous classes of loans, such as residential real estate, home equity lines of credit and other consumer loans. Accordingly, the Corporation generally does not separately identify individual consumer and residential loans for impairment disclosures, unless such a loan: (1) is subject to a restructuring agreement, (2) has an outstanding balance of $400,000 or more and a credit grade of Special Mention, Substandard or Doubtful, or (3) has an estimated loss of $100,000 or more. The pools of loans for each loan segment are evaluated for loss exposure based upon average historical net charge-off rates, adjusted for qualitative factors. The time period used in determining the average historical net charge-off rate for each loan class is based on management’s evaluation of an appropriate time period that captures an historical loss experience relevant to the current portfolio. Qualitative risk factors (described in the following paragraph) are evaluated for the impact on each of the three distinct segments (residential mortgage, commercial and consumer) within the loan portfolio. Each qualitative factor is assigned a value to reflect improving, stable or declining conditions based on management’s judgment using relevant information available at the time of the evaluation. Any adjustments to the factors are supported by a narrative documentation of changes in conditions accompanying the allowance for loan losses calculation.

The qualitative factors used in the general component calculations are designed to address credit risk characteristics associated with each segment. The Corporation’s credit risk associated with all of the segments is significantly impacted by these factors, which include economic conditions within its market area, the Corporation’s lending policies, changes or trends in the portfolio, risk profile, competition, regulatory requirements and other factors.

Loans are classified as impaired when, based on current information and events, it is probable that the Corporation will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record and the amount of shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial loans by the fair value of the collateral (if the loan is collateral dependent), by future cash flows discounted at the loan’s effective rate or by the loan’s observable market price.

For commercial loans secured by real estate, estimated fair values are determined primarily through third-party appraisals. When a real estate secured loan becomes impaired, a decision is made regarding whether an updated certified appraisal of the real estate is necessary. This decision is based on various considerations, including the age of the most recent appraisal, the loan-to-value ratio based on the original appraisal and the condition of the property. Appraised values are discounted to arrive at the estimated selling price of the collateral, which is considered to be the estimated fair value. The discounts also include estimated costs to sell the property.

For commercial and industrial loans secured by non-real estate collateral, such as accounts receivable, inventory and equipment, estimated fair values are determined based on the borrower’s financial statements, inventory reports, accounts receivable aging data or equipment appraisals or invoices. Indications of value from these sources are generally discounted based on the age of the financial information or the quality of the assets.

Loans whose terms are modified are classified as troubled debt restructurings if the Corporation grants such borrowers concessions and it is deemed that those borrowers are experiencing financial difficulty. Concessions granted under a troubled debt restructuring generally involve reductions in required payments, an extension of a loan’s stated maturity date or a temporary reduction in interest rate. Loans classified as troubled debt restructurings are designated as impaired. Nonaccrual troubled debt restructurings may be restored to accrual status if the ultimate collectability of principal and interest payments under the modified terms is not in doubt, and there has been a period (generally, for at least six consecutive months) of satisfactory payment performance by the borrower either immediately before or after the restructuring.

BANK PREMISES AND EQUIPMENT - Bank premises and equipment are stated at cost less accumulated depreciation. Repair and maintenance expenditures which extend the useful lives of assets are capitalized, and other repair and maintenance expenditures are expensed as incurred. Depreciation expense is computed using the straight-line method.

IMPAIRMENT OF LONG-LIVED ASSETS - The Corporation reviews long-lived assets, such as premises and equipment and intangibles, for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. These changes in circumstances may include a significant decrease in the market value of an asset or the manner in which an asset is used. If there is an indication the carrying value of an asset may not be recoverable, future undiscounted cash flows expected to result from use of the asset are estimated. If the sum of the expected cash flows is less than the carrying value of the asset, a loss is recognized for the difference between the carrying value and fair market value of the asset.

FORECLOSED ASSETS HELD FOR SALE - Foreclosed assets held for sale consist of real estate acquired by foreclosure and are initially recorded at fair value, less estimated selling costs.

GOODWILL - Goodwill represents the excess of the cost of acquisitions over the fair value of the net assets acquired. Goodwill is tested at least annually at December 31 for impairment, or more often if events or circumstances indicate there may be impairment. The Corporation has the option of performing a qualitative assessment to determine whether any further quantitative testing for impairment is necessary. The option of whether or not to perform a qualitative assessment is made annually.

CORE DEPOSIT INTANGIBLES – Amortization of core deposit intangibles is calculated using an accelerated method. In determining amortization using the accelerated method for any given period, the amount of expected cash flows for that period that were used in determining the acquisition-date fair value is divided by the total amount of expected cash flows over the life of the asset. That percentage is multiplied by the initial carrying amount of the asset to arrive at amortization expense for that period. If the Corporation’s cash flow patterns differ significantly from the initial estimates, the amortization schedule would be adjusted prospectively.

SERVICING RIGHTS - The estimated fair value of servicing rights related to mortgage loans sold and serviced by the Corporation is recorded as an asset upon the sale of such loans. The valuation of servicing rights is adjusted quarterly, with changes in fair value included in Loan Servicing Fees, Net, in the consolidated statements of income. Significant inputs to the valuation include expected net servicing income to be received, the expected life of the underlying loans and the discount rate. The servicing rights asset is included in Other Assets in the consolidated balance sheets.

INCOME TAXES - Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amount of existing assets and liabilities and their respective tax bases given the provisions of the enacted tax laws. Deferred tax assets are reduced, if necessary, by the amount of such benefits that are not expected to be realized based upon available evidence. Tax benefits from investments in limited partnerships that have qualified for federal low-income tax credits are recognized as a reduction in the provision for income tax over the term of the investment using the effective yield method. The Corporation includes income tax penalties in the provision for income tax. The Corporation has no accrued interest related to unrecognized tax benefits.

STOCK COMPENSATION PLANS - The Corporation’s stock-based compensation policy applies to all forms of stock-based compensation including stock options and restricted stock units. All stock-based compensation is accounted for under the fair value method as required by U.S. GAAP. The expense associated with stock-based compensation is recognized over the vesting period of each individual arrangement.

The fair value of each stock option is estimated on the date of grant using the Black-Scholes-Merton option valuation model. The fair value of restricted stock is based on the current market price on the date of grant.

OFF-BALANCE SHEET FINANCIAL INSTRUMENTS - In the ordinary course of business, the Corporation has entered into off-balance sheet financial instruments consisting of commitments to extend credit and standby letters of credit. Such financial instruments are recorded in the financial statements when they become payable.

CASH FLOWS - The Corporation utilizes the net reporting of cash receipts and cash payments for certain deposit and lending activities. Cash equivalents include federal funds sold and all cash and amounts due from depository institutions and interest-bearing deposits in other banks with original maturities of three months or less.

REVENUE RECOGNITION - As of January 1, 2018, the Corporation adopted Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers (Topic 606), as well as subsequent ASUs that modified Topic 606. The Company elected to apply the ASU and all related ASUs using the modified retrospective implementation method. The implementation of the guidance had no material impact on the measurement or recognition of revenue of prior periods. The Corporation generally fully satisfies its performance obligations on its contracts with customers as services are rendered and the transaction prices are typically fixed; charged either on a periodic basis or based on activity. Because performance obligations are satisfied as services are rendered and the transaction prices are fixed, there is little judgment involved in applying Topic 606 that significantly affects the determination of the amount and timing of revenue from contracts with customers.

Additional disclosures related to the Corporation’s largest sources of noninterest income within the consolidated statements of income that are subject to Topic 606 are as follows:

Trust and financial management revenue – C&N Bank’s trust division provides a wide range of financial services, including wealth management services for individuals, businesses and retirement funds, administration of 401(k) and other retirement plans, retirement planning, estate planning and estate settlement services. Trust clients are located primarily within the Corporation’s geographic markets. Assets held in a fiduciary capacity by C&N Bank are not the Corporation’s assets and are therefore not included in the consolidated balance sheets. The fair value of trust assets under management was approximately $1,007,113,000 at December 31, 2019 and $862,517,000 at December 31, 2018. Trust and financial management revenue is included within noninterest income in the consolidated statements of income.

Trust revenue is recorded on a cash basis, which is not materially different from the accrual basis. The majority (approximately 82%, based on annual 2019 results) of trust revenue is earned and collected monthly, with the amount determined based on a percentage of the fair value of the trust assets under management. Wealth management fees are contractually agreed with each customer, and fee levels vary based mainly on the size of assets under management. The services provided under such a contract represent a single performance obligation under the ASU because it embodies a series of distinct goods or services that are substantially the same and have the same pattern of transfer to the customer. None of the contracts with trust customers provide for incentive-based fees. In addition to wealth management fees, trust revenue includes fees for provision of services, including employee benefit plan administration, tax return preparation and estate planning and settlement. Fees for such services are billed based on contractual arrangements or established fee schedules and are typically billed upon completion of providing such services. The costs of acquiring trust customers are incremental and recognized within noninterest expense in the consolidated statements of income.

Service charges on deposit accounts - Deposits are included as liabilities in the consolidated balance sheets. Service charges on deposit accounts include: overdraft fees, which are charged when customers overdraw their accounts beyond available funds; automated teller machine (ATM) fees charged for withdrawals by deposit customers from other financial institutions’ ATMs; and a variety of other monthly or transactional fees for services provided to retail and business customers, mainly associated with checking accounts. All deposit liabilities are considered to have one-day terms and therefore related fees are recognized in income at the time when the services are provided to the customers. Incremental costs of obtaining deposit contracts are not significant and are recognized as expense when incurred within noninterest expense in the consolidated statements of income.

Interchange revenue from debit card transactions – The Corporation issues debit cards to consumer and business customers with checking, savings or money market deposit accounts. Debit card and ATM transactions are processed via electronic systems that involve several parties. The Corporation’s debit card and ATM transaction processing is executed via contractual arrangements with payment processing networks, a processor and a settlement bank. As described above, all deposit liabilities are considered to have one-day terms and therefore interchange revenue from customers’ use of their debit cards to initiate transactions are recognized in income at the time when the services are provided and related fees received in the Corporation’s deposit account with the settlement bank. Incremental costs associated with ATM and interchange processing are recognized as expense when incurred within noninterest expense in the consolidated statements of income.

2. RECENT ACCOUNTING PRONOUNCEMENTS

The Financial Accounting Standards Board (FASB) issues ASUs to the FASB Accounting Standards Codification (ASC). This section provides a summary description of recent ASUs that have significant implications (elected or required) within the consolidated financial statements, or that management expects may have a significant impact on financial statements issued in the foreseeable future.

Recent Accounting Pronouncements - Adopted

Effective December 31, 2019, the Corporation elected early adoption of ASU 2017-04, Intangibles – Goodwill and Other (Topic 350), which simplified accounting for goodwill impairment by removing step 2 of the goodwill impairment test thus eliminating the need to determine the fair value of individual assets and liabilities of the reporting unit. Upon adoption of this ASU, goodwill impairment is the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. Adoption of this ASU did not have a material impact on the Corporation’s consolidated financial statements.

Effective January 1, 2019, the Corporation adopted ASU 2016-02, Leases (Topic 842), as modified by subsequent ASUs, which changed U.S. GAAP by requiring that lease assets and liabilities arising from operating leases be recognized on the balance sheet. Topic 842, as modified, does not significantly change the recognition, measurement and presentation of expenses and cash flows arising from a lease by a lessee from prior U.S. GAAP. For leases with a term of 12 months or less, the Corporation made an accounting policy election by class of underlying asset not to recognize lease assets and liabilities. The Corporation elected to adopt this pronouncement using an optional transition method resulting in recognition of right-of-use assets and lease liabilities for operating leases of $1,132,000 on its consolidated balance sheets at January 1, 2019, with no adjustment to stockholders’ equity and no material impact to its consolidated statements of income. At December 31, 2019, right-of-use assets of $1,637,000 were included in other assets, and the related liabilities totaling the same amount were included in accrued interest and other liabilities, in the consolidated balance sheets.

In February 2018, the FASB issued ASU 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which permits, but does not require, entities to reclassify tax effects stranded in accumulated other

comprehensive income resulting from the Tax Cuts and Jobs Act of 2017 to retained earnings. Companies that elect to reclassify these amounts must reclassify stranded tax effects for all items accounted for in accumulated other comprehensive income. The Corporation elected early adoption and adopted this standard update, effective January 1, 2018. The Corporation’s stranded tax effects were related to valuation of the net deferred tax asset attributable to items of accumulated other comprehensive income (loss), which are unrealized gains (losses) on available-for-sale debt securities and unfunded defined benefit plan obligations. Adoption resulted in a reclassification between two categories of stockholders’ equity at January 1, 2018, with an increase of $325,000 in retained earnings and a decrease in accumulated other comprehensive loss for the same amount (no net change in stockholders’ equity).

Effective January 1, 2018, the Corporation elected early adoption of ASU 2017-08, Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20). This Update shortens the amortization period for certain callable debt securities held at a premium. Discounts will continue to be amortized to maturity. Adoption resulted in a reduction in retained earnings and corresponding increase in accumulated other comprehensive loss (no net change in stockholders’ equity) of $26,000 at January 1, 2018 for the cumulative after-tax impact of the change in accounting for debt securities held as of that date.

Effective January 1, 2018, the Corporation adopted ASU 2016-01, Recognition and Measurement of Financial Assets and Liabilities. The guidance affects the accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements of financial instruments. ASU 2016-01 was effective for the Corporation on January 1, 2018 and resulted in the following changes:

Recently Issued But Not Yet Effective Accounting Pronouncements

ASU 2016-13, Financial Instruments-Credit Losses (Topic 326), as modified by subsequent ASUs, changes accounting for credit losses on loans receivable and debt securities from an incurred loss methodology to an expected credit loss methodology. Among other things, ASU 2016-13 requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Accordingly, ASU 2016-13 requires the use of forward-looking information to form credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, though the inputs to those techniques will change to reflect the full amount of expected credit losses.

In addition, ASU 2016-13 amends the accounting for credit losses on debt securities and purchased financial assets with credit deterioration. The effect of implementing this ASU is recorded through a cumulative-effect adjustment to retained earnings. The Corporation has formed a cross functional management team and is working with an outside vendor assessing alternative loss estimation methodologies and the Corporation’s data and system needs to evaluate the impact that adoption of this standard will have on the Corporation’s financial condition and results of operations. In November 2019, the FASB approved a delay of the required implementation date of ASU 2016-13 for smaller reporting companies, including the Corporation, resulting in a required implementation date for the Corporation of January 1, 2023.

ASU 2018-13, Fair Value Measurement (Topic 820) modifies disclosure requirements on fair value measurements. This ASU removes requirements to disclose the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, the policy for timing of transfers between levels and the valuation processes for Level 3 fair value measurements. ASU 2018-13 clarifies that disclosure regarding measurement uncertainty is intended to communicate information about the uncertainty in measurement as of the reporting date. ASU 2018-13 adds certain disclosure requirements, including disclosure of changes in unrealized gains and losses for the period included in other comprehensive income for recurring Level 3 fair value measurements held at the end of the reporting period and the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements. The amendments in this ASU are effective for the Corporation beginning in the first quarter 2020. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements and the narrative description of measurement uncertainty should be applied prospectively, while all other amendments should be applied retrospectively for all periods presented. The Corporation does not expect adoption of this ASU to have a material impact on its consolidated financial position or results of operations.

ASU 2018-15, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40) was issued to help entities evaluate the accounting for fees paid by a customer in a cloud computing arrangement (hosting arrangement) by providing guidance for determining when the arrangement includes a software license. The amendments align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). The accounting for the service element of a hosting arrangement that is a service contract is not affected by the amendments. This guidance will become effective for the Corporation beginning in the first quarter 2020, with early adoption permitted. The Corporation does not expect adoption of this ASU to have a material impact on its consolidated financial statements.

3. BUSINESS COMBINATION AND PENDING ACQUISITION

Business Combination – Acquisition of Monument Bancorp, Inc.

On April 1, 2019, the Corporation completed its acquisition of 100% of the common stock of Monument. Monument was the parent company of Monument Bank, a commercial bank which operated two community bank offices and one lending office in Bucks County, Pennsylvania. Pursuant to the merger, Monument was merged into Citizens & Northern Corporation and Monument Bank was merged into C&N Bank. Management believes the acquisition provides an opportunity to leverage the Corporation’s capital and deposits in a higher growth market and aligns with the Corporation’s focus to proactively deploy capital to enhance long-term shareholder value.

The consolidated financial statements include the formerly separate Monument operations from April 1, 2019 through December 31, 2019. Since the activities of the former Monument operations have been combined with those of the Corporation, separate disclosure of Monument-related financial information included in the consolidated financial statements is not practicable.

Total purchase consideration was $42,651,000, including cash paid to former Monument shareholders totaling $9,517,000 and 1,279,825 shares of Corporation common stock issued with a value of $32,953,000, (net of costs directly related to stock issuance of $181,000 included in the cash portion of merger consideration transferred in the table below).

The merger was accounted for using the acquisition method of accounting and, accordingly, purchased assets, including identifiable intangible assets, and assumed liabilities were recorded at their respective acquisition date fair values. The fair value measurements of assets acquired and liabilities assumed are subject to refinement for up to one year after the closing date of the acquisition as additional information relative to closing date fair values become available. In the fourth quarter 2019, the Corporation recorded an adjustment to the initial fair value measurements of miscellaneous receivables and accrued liabilities made as of April 1, 2019. The adjustment resulted in an increase in other assets of $216,000 and a decrease in other liabilities of $14,000, with a corresponding reduction in goodwill of $230,000.

The fair value of assets acquired (as adjusted in the fourth quarter 2019), excluding goodwill, totaled $375,138,000, while the fair value of liabilities assumed totaled $348,933,000. Goodwill represents consideration transferred in excess of the fair value of the net assets acquired. At December 31, 2019, goodwill associated with the acquisition was $16,446,000. The goodwill resulting from the acquisition represents the value expected from the expansion of the Corporation’s market into Southeastern Pennsylvania. Goodwill acquired in the Monument merger is not deductible for tax purposes as the acquisition is accounted for as a tax-free exchange for tax purposes.

The following table summarizes the consideration paid for Monument and the estimated fair values of the assets acquired and liabilities assumed at the acquisition date:

In the consolidated statements of cash flows, noncash investing and financing activities include the issuance of common stock as part of the merger consideration as well as the following categories of assets acquired and liabilities assumed from Monument as reflected in the table above: available-for-sale debt securities, loans receivable, bank premises and equipment, foreclosed assets held for sale, core deposit intangible, goodwill, Federal Home Loan Bank of Pittsburgh stock of $5,478,000 (included in other assets above), deposits, short-term borrowings and subordinated debt.

Acquisition date fair values for available-for-sale securities were determined using Level 1 inputs consistent with the methods discussed further in Note 21. The Corporation sold the acquired securities in April 2019 for approximately no realized gain or loss.

The determination of estimated fair values of the acquired loans required the Corporation to make certain estimates about discount rates, future expected cash flows, market conditions and other future events that are highly subjective in nature. Based on such factors as past due status, nonaccrual status, bankruptcy status, and credit risk ratings, the acquired loans were evaluated, and four loans (from three relationships) displayed evidence of credit quality deterioration. These loans are accounted for under ASC 310-30 (purchased credit impaired, or “PCI”). The majority of the purchased loans did not display evidence of impairment, and thus are accounted for under ASC 310-20. Expected cash flows, both principal and interest, were estimated based on key assumptions covering such factors as prepayments, default rates and severity of loss given default. These assumptions were developed based on the portfolio characteristics as of the acquisition date as well as available market research. The fair value estimates for acquired loans were based on the amount and timing of expected principal, interest and other cash flows, including expected prepayments, discounted at prevailing market interest rates applicable to the types of acquired loans, which the Corporation considers Level 3 fair value measurements.

Loans acquired from Monument were measured at fair value at the acquisition date with no carryover of an allowance for loan losses. The following table presents performing and PCI loans acquired, by loan segment and class, at April 1, 2019:

The following table presents the preliminary fair value adjustments made to the amortized cost basis of loans acquired at April 1, 2019:

The market rate adjustment represents the movement in interest rates, irrespective of credit adjustments, compared to the contractual rates of the acquired loans. The credit adjustment made on non-PCI loans represents changes in credit quality of the underlying borrowers from loan inception to the acquisition date.

The credit adjustment on PCI loans is derived in accordance with ASC 310-30 and represents the portion of the loan balances that have been deemed uncollectible for each loan. The PCI loans are secured by real estate and the fair value of each loan was determined based on the estimated proceeds to be derived from selling the collateral, net of selling costs. The PCI loans were placed into nonaccrual status upon acquisition (and remained in nonaccrual status at December 31, 2019) as the Corporation cannot reasonably estimate cash flows expected to be collected in order to compute yield on the loans.

The Corporation recognized a core deposit intangible of $1,461,000. The core deposit intangible represents the estimated value of lower-cost funding provided by the nonmaturity deposits assumed in comparison with the Corporation’s estimated cost of borrowing funds in the market. The core deposit intangible will be amortized over a weighted-average life of 4.4 years.

Deposit liabilities assumed were segregated into two categories: (1) nonmaturity deposits (checking, savings and money market), and (2) time deposits (deposit accounts with a stated maturity). The fair values of both categories of deposits were determined using level 2 fair value measurements. For nonmaturity deposits, the acquisition date outstanding balance of the assumed demand deposit accounts approximates fair value. In determining the fair value of time deposits, the Corporation discounted the contractual cash flows of the deposit accounts using prevailing market interest rates for time deposit accounts of similar type and duration.

Short-term borrowings assumed consisted of advances from the Federal Home Loan Bank of Pittsburgh. The fair value of short-term borrowings was determined using Level 2 measurements by discounting the contractual cash flows of the borrowings using Federal Home Loan Bank interest rates available April 1, 2019 for advances to the same maturities as those of the deposits assumed.

Subordinated debt assumed included two issues: (1) agreements with par values totaling $5,375,000 which were redeemed on April 1, 2019; and (2) agreements with par values totaling $7,000,000, maturing April 1, 2027 and which may be redeemed at par beginning April 1, 2022. The fair value of subordinated debt was determined using Level 2 measurements by comparing the interest rates on the debt to the rates on similar recent issues of comparable size by other similar-sized banking companies. In the fourth quarter 2019, the Corporation redeemed subordinated debt with a par value of $500,000, resulting in a loss of $10,000 (included in other noninterest expense in the consolidated statements of income).

Merger-related expenses associated with the Monument transaction totaled of $3,812,000 in 2019 and $328,000 in 2018. Merger-related expenses include costs associated with termination of data processing contracts, conversion of Monument’s customer accounting data into the Corporation’s core system, severance and similar expenses, legal and other professional fees and various other costs.

The following table presents pro forma information as if the merger between the Corporation and Monument had been completed on January 1, 2018. The pro forma information does not necessarily reflect the results of operations that would have occurred had the merger taken place at the beginning of 2018. The supplemental pro forma information excludes the after-tax cost of merger-related expenses totaling $3,270,000 in 2019 and $305,000 in 2018. The pro forma information does not include the impact of possible business model changes nor does it consider any potential impacts of current market conditions or revenues, expense efficiencies or other factors.

Pending Acquisition of Covenant Financial, Inc.

In December 2019, the Corporation announced a plan of merger to acquire Covenant Financial, Inc. (“Covenant”) in a transaction valued on December 18, 2019 at approximately $77 million. Under the terms of the definitive agreement, the Corporation will pay cash for 25% of the Covenant shares and will convert 75% of Covenant shares to the Corporation’s common stock. Covenant is the holding company for Covenant Bank, which operates banking offices in Bucks and Chester Counties of PA. Covenant had total assets of $516 million, liabilities of $474 million and stockholders’ equity of $42 million at December 31, 2019. The merger is subject to satisfaction of customary closing conditions, including receipt of regulatory approvals and approval of Covenant’s shareholders. The merger is expected to close in the third quarter 2020. In 2019, the Corporation incurred merger-related expenses totaling $287,000 related to the planned acquisition of Covenant. Management estimates pre-tax merger-related expenses associated with the Covenant acquisition will total approximately $8 million ($6.6 million, net of tax), with most of the expenses expected to be incurred in the third quarter 2020.

4. PER SHARE DATA

Basic earnings per common share are calculated using the two-class method to determine income attributable to common shareholders. Unvested restricted stock awards that contain nonforfeitable rights to dividends are considered participating securities under the two-class method. Distributed dividends and an allocation of undistributed net income to participating securities reduce the amount of income attributable to common shareholders. Income attributable to common shareholders is then divided by weighted-average common shares outstanding for the period to determine basic earnings per common share.

Diluted earnings per common share are calculated under the more dilutive of either the treasury method or the two-class method. Diluted earnings per common share is computed using weighted-average common shares outstanding, plus weighted-average common shares available from the exercise of all dilutive stock options, less the number of shares that could be repurchased with the proceeds of stock option exercises based on the average share price of the Corporation's common stock during the period.

(a) Basic and diluted earnings per share under the two-class method are determined on net income reported on the income statement less earnings allocated to nonvested restricted shares with nonforfeitable dividends (participating securities).

The weighted-average number of nonvested restricted shares outstanding was 68,358 shares in 2019 and 61,778 shares in 2018.

Stock options that are anti-dilutive are excluded from net income per share calculations. There were no anti-dilutive instruments in 2019 or 2018.

5. COMPREHENSIVE INCOME

Comprehensive income (loss) is the total of (1) net income, and (2) all other changes in equity from non-stockholder sources, which are referred to as other comprehensive income (loss). The components of other comprehensive income (loss), and the related tax effects, are as follows:

Changes in the components of accumulated other comprehensive income (loss), included in stockholders’ equity, are as follows:

Items reclassified out of each component of accumulated other comprehensive income (loss) are as follows:

Certificates of deposit are issues by U.S. banks with original maturities greater than three months. Each certificate of deposit is fully FDIC-insured. The Corporation maintains cash and cash equivalents with certain financial institutions in excess of the FDIC insurance limit.

The Corporation is required to maintain reserves against deposit liabilities in the form of cash and balances with the Federal Reserve Bank. The reserves are based on deposit levels, account activity, and other services provided by the Federal Reserve Bank. Required reserves were $20,148,000 at December 31, 2019 and $18,141,000 at December 31, 2018.

The following table presents gross unrealized losses and fair value of available-for-sale debt securities with unrealized loss positions that are not deemed to be other-than-temporarily impaired, aggregated by length of time that individual securities have been in a continuous unrealized loss position at December 31, 2019 and 2018:

Gross realized gains and losses from available-for-sale securities and the related income tax provision were as follows:

The amortized cost and fair value of available-for-sale debt securities by contractual maturity are shown in the following table as of December 31, 2019. Actual maturities may differ from contractual maturities because counterparties may have the right to call or prepay obligations with or without call or prepayment penalties.

The Corporation’s mortgage-backed securities and collateralized mortgage obligations have stated maturities that may differ from actual maturities due to borrowers’ ability to prepay obligations. Cash flows from such investments are dependent upon the performance of the underlying mortgage loans and are generally influenced by the level of interest rates. In the table above, mortgage-backed securities and collateralized mortgage obligations are shown in one period.

Investment securities carried at $215,270,000 at December 31, 2019 and $229,418,000 at December 31, 2018 were pledged as collateral for public deposits, trusts and certain other deposits as provided by law. See Note 12 for information concerning securities pledged to secure borrowing arrangements.

Management evaluates securities for OTTI at least on a quarterly basis, and more frequently when economic or market conditions warrant such evaluation. Consideration is given to (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial condition and near-term prospects of the issuer, and (3) whether the Corporation intends to sell the security or more likely than not will be required to sell the security before its anticipated recovery.

A summary of information management considered in evaluating debt and equity securities for OTTI at December 31, 2019 and 2018 is provided below.

Debt Securities

At December 31, 2019 and 2018, management performed an assessment for possible OTTI of the Corporation’s debt securities on an issue-by-issue basis, relying on information obtained from various sources, including publicly available financial data, ratings by external agencies, brokers and other sources. The extent of individual analysis applied to each security depended on the size of the Corporation’s investment, as well as management’s perception of the credit risk associated with each security. Based on the results of the assessment, management believes impairment of these debt securities at December 31, 2019 and 2018 to be temporary.

Equity Securities

C&N Bank is a member of the Federal Home Loan Bank of Pittsburgh (FHLB-Pittsburgh), which is one of 11 regional Federal Home Loan Banks. As a member, C&N Bank is required to purchase and maintain stock in FHLB-Pittsburgh. There is no active market for FHLB-Pittsburgh stock, and it must ordinarily be redeemed by FHLB-Pittsburgh in order to be liquidated. C&N Bank’s investment in FHLB-Pittsburgh stock, included in Other Assets in the consolidated balance sheets, was $10,131,000 at December 31, 2019 and $5,582,000 at December 31, 2018. The Corporation evaluated its holding of FHLB-Pittsburgh stock for impairment and deemed the stock to not be impaired at December 31, 2019 and December 31, 2018. In making this determination, management concluded that recovery of total outstanding par value, which equals the carrying value, is expected. The decision was based on review of financial information that FHLB-Pittsburgh has made publicly available.

The Corporation’s marketable equity security, with carrying values of $979,000 at December 31, 2019 and $950,000 at December 31, 2018, consisted exclusively of one mutual fund. There was an unrealized loss on the mutual fund of $21,000 at December 31, 2019 and $50,000 at December 31, 2018. The decrease in the unrealized loss of $29,000 in 2019 and the increase in the unrealized loss of $21,000 in 2018 are included in other noninterest income in the consolidated statements of income.

In the year ended December 31, 2018, the Corporation recorded pre-tax gains from sales of a restricted equity security (Visa Class B stock) totaling $2,321,000. The Corporation had received 19,789 shares of Visa Class B stock pursuant to Visa’s 2007 initial public offering. Until the second quarter 2018, the carrying value of the shares was $0, which represented the Corporation’s cost basis. Class B shares are subject to restrictions on transfer, essentially limiting their transferability to other owners of Class B shares. In the second and third quarters of 2018, the Corporation sold all of its Visa Class B stock.

A summary of realized and unrealized gains and losses recognized on equity securities is as follows:

In the table above, outstanding loan balances are presented net of deferred loan origination fees, net, of $2,482,000 at December 31, 2019 and $1,999,000 at December 31, 2018.

As described in Note 3, effective April 1, 2019, the Corporation acquired loans pursuant to the acquisition of Monument. The loans acquired from Monument were recorded at an initial fair value of $259,295,000. The gross amortized cost of loans acquired from Monument on April 1, 2019 was reduced $1,807,000 based on movements in interest rates (market rate adjustment) and was also reduced $1,914,000 based on a credit fair value adjustment on non-impaired loans and by $318,000 based on a credit fair value adjustment on impaired loans. In 2019, adjustments to these initial discounts to the carrying amounts of loans were recognized as follows:

The Corporation grants loans to individuals as well as commercial and tax-exempt entities. Commercial, residential and personal loans are made to customers geographically concentrated in northcentral Pennsylvania, the southern tier of New York State, southeastern Pennsylvania and southcentral Pennsylvania. Although the Corporation has a diversified loan portfolio, a significant portion of its debtors’ ability to honor their contracts is dependent on the local economic conditions within the region. There is no concentration of loans to borrowers engaged in similar businesses or activities that exceed 10% of total loans at December 31, 2019.

Transactions within the allowance for loan losses, summarized by segment and class, were as follows:

In the evaluation of the loan portfolio, management determines two major components for the allowance for loan losses – (1) a specific component based on an assessment of certain larger relationships, mainly commercial purpose loans, on a loan-by-loan basis; and (2) a general component for the remainder of the portfolio, except for performing loans purchased in 2019 from Monument, based on a collective evaluation of pools of loans with similar risk characteristics. The general component is assigned to each pool of loans based on both historical net charge-off experience, and an evaluation of certain qualitative factors. An unallocated component is maintained to cover uncertainties that could affect management’s estimate of probable losses. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the above methodologies for estimating specific and general losses in the portfolio.

Loans acquired from Monument that were identified as having a deterioration in credit quality (purchased credit impaired, or PCI) were valued at $441,000 at April 1, 2019 and December 31, 2019. The remainder of the portfolio was deemed to be the performing component of the portfolio. None of the performing loans purchased were found to be impaired at December 31, 2019, and the performing loans purchased in 2019 were excluded from the loan pools for which the general component of the allowance for loan losses was calculated.

In determining the larger loan relationships for detailed assessment under the specific allowance component, the Corporation uses an internal risk rating system. Under the risk rating system, the Corporation classifies problem or potential problem loans as “Special Mention,” “Substandard,” or “Doubtful” on the basis of currently existing facts, conditions and values. Loans that do not currently expose the Corporation to sufficient risk to warrant classification as Substandard or Doubtful, but possess weaknesses that deserve management’s close attention, are deemed to be Special Mention. Substandard loans include those characterized by the distinct possibility that the Corporation will sustain some loss if the deficiencies are not corrected. Loans classified as Doubtful have all the weaknesses inherent in those classified as Substandard with the added characteristic that the weaknesses present make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. Risk ratings are updated any time that conditions or the situation warrants. Loans not classified are included in the “Pass” column in the table below.

The following tables summarize the aggregate credit quality classification of outstanding loans by risk rating as of December 31, 2019 and 2018: