SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
Dec. 31, 2020
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES ORGANIZATION The Corporation, through its wholly owned subsidiaries, the Bank and CFS Group, Inc., provides a wide range of banking, financing, fiduciary and other financial services to its clients. The Corporation is subject to the regulations of certain federal and state agencies and undergoes periodic examinations by those regulatory agencies. CRM, a wholly-owned subsidiary of the Corporation which was formed and began operations on May 31, 2016, is a Nevada-based captive insurance company which insures against certain risks unique to the operations of the Corporation and its subsidiaries and for which insurance may not be currently available or economically feasible in today's insurance marketplace. CRM pools resources with several other similar insurance company subsidiaries of financial institutions to spread a limited amount of risk among themselves. CRM is subject to regulations of the State of Nevada and undergoes periodic examinations by the Nevada Division of Insurance. BASIS OF PRESENTATION The accompanying consolidated financial statements have been prepared in conformity with GAAP and include the accounts of the Corporation and its subsidiaries. All significant intercompany balances and transactions are eliminated in consolidation. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and disclosures provided, and actual results could differ. CASH AND CASH EQUIVALENTS Cash and cash equivalents include cash and amounts due from banks and demand interest-bearing deposits with other financial institutions. Time deposits with other financial institutions are classified as held-to-maturity securities and are not included in cash and cash equivalents. EQUITY INVESTMENTS On January 1, 2018, the Corporation adopted ASU 2016-01, an amendment to Recognition and Measurement of Financial Assets and Financial Liabilities (Subtopic 825-10), which requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. The adoption of this guidance resulted in a $40 thousand increase to beginning retained earnings and a $202 thousand decrease to beginning accumulated other comprehensive income (loss). Securities that are held to fund a non-qualified deferred compensation plan and securities that have a readily determinable fair market value, are recorded at fair value with changes in fair value and interest and dividend income included in earnings. SECURITIES Management determines the appropriate classification of securities at the time of purchase. If management has the intent and the Corporation has the ability at the time of purchase to hold securities until maturity, they are classified as held to maturity and carried at amortized cost. Securities to be held for indefinite periods of time or not intended to be held to maturity are classified as available for sale and carried at fair value. Unrealized holding gains and losses on securities classified as available for sale are excluded from earnings and are reported as accumulated other comprehensive income (loss) in shareholders' equity, net of the related tax effects, until realized. Realized gains and losses are determined using the specific identification method. Management evaluates securities for OTTI on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. For securities in an unrealized loss position, management considers the extent and duration of the unrealized loss, and the financial condition and near-term prospects of the issuer. Management also assesses whether it intends to sell, or it is more likely than not that it will be required to sell, a security in an unrealized loss position before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the entire difference between amortized cost and fair value is recognized as impairment through earnings. For debt securities that do not meet the aforementioned criteria, the amount of impairment is split into two components as follows: 1) OTTI related to credit loss, which must be recognized in the income statement and 2) OTTI related to other factors, which is recognized in other comprehensive income. The credit loss is defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis. For equity securities, the entire amount of impairment is recognized through earnings. In order to determine OTTI for purchased beneficial interests that, on the purchase date, were not highly rated, the Corporation compares the present value of the remaining cash flows as estimated at the preceding evaluation date to the current expected remaining cash flows. OTTI is deemed to have occurred if there has been an adverse change in the remaining expected future cash flows. Premiums and discounts are amortized or accreted over the life of the related security as an adjustment of yield using the interest method. Dividend and interest income is recognized when collected. FEDERAL HOME LOAN BANK AND FEDERAL RESERVE BANK STOCK The Bank is a member of both the FHLBNY and the FRBNY. FHLBNY members are required to own a certain amount of stock based on the level of borrowings and other factors, while FRBNY members are required to own a certain amount of stock based on a percentage of the Bank’s capital stock and surplus. FHLBNY and FRBNY stock are carried at cost and classified as non-marketable equities and periodically evaluated for impairment based on ultimate recovery of par value. Cash dividends are reported as income. LOANS Loans are stated at the amount of unpaid principal balance net of deferred loan fees. Additionally, recorded investment in loans includes interest receivable on loans. The Corporation has the ability and intent to hold its loans for the foreseeable future. The Corporation’s loan portfolio is comprised of the following segments: (i) commercial and agricultural, (ii) commercial mortgages, (iii) residential mortgages, and (iv) consumer loans. Commercial and agricultural loans primarily consist of loans to small to mid-sized businesses in the Corporation’s market area in a diverse range of industries. These loans are typically made on the basis of the borrower’s ability to make repayment from the cash flow of the borrower’s business. Commercial mortgage loans are generally non-owner occupied commercial properties or owner occupied commercial real estate with larger balances. Repayment of these loans is often dependent upon the successful operation and management of the properties and the businesses occupying the properties, as well as on the collateral securing the loan. Residential mortgage loans are generally made on the basis of the borrower’s ability to make repayment from their employment and other income, but are secured by real property. Consumer loans include home equity lines of credit and home equity loans, which exhibit many of the same characteristics as residential mortgages. Indirect and other consumer loans are typically secured by depreciable assets, such as automobiles or boats, and are dependent on the borrower’s continuing financial stability. Interest on loans is accrued and credited to operations using the interest method. Past due status is based on the contractual terms of the loan. The accrual of interest is generally discontinued and previously accrued interest is reversed when loans become 90 days delinquent. Loans may also be placed on non-accrual status if management believes such classification is otherwise warranted. All payments received on non-accrual loans are applied to principal. Loans are returned to accrual status when they become current as to principal and interest and remain current for a period of six consecutive months or when, in the opinion of management, the Corporation expects to receive all of its original principal and interest. Loan origination fees and certain direct loan origination costs are deferred and amortized over the life of the loan as an adjustment to yield, using the interest method. TROUBLED DEBT RESTRUCTURINGS A TDR is a formally renegotiated loan in which the Bank, for economic or legal reasons related to a borrower’s financial difficulties, grants a concession to the borrower that would not have been granted to the borrower otherwise. Not all loans that are restructured as a TDR are classified as non-accrual before the restructuring occurs. Restructured loans can convert from non-accrual to accrual status when said loans have demonstrated performance, generally evidenced by six months of payment performance in accordance with the restructured terms and when, in the opinion of management, the Bank expects to receive all of its contractual principal and interest due under the restructured terms. TDRs are individually evaluated for impairment and included in the separately identified impairment disclosures. TDRs are measured at the present value of estimated future cash flows using the loan's effective rate at inception. If a TDR is considered to be a collateral dependent loan, the loan is reported, net, at the fair value of the collateral. For TDRs that subsequently default, the Bank determines the amount of the allowance on that loan in accordance with the accounting policy for the allowance for loan losses on loans individually identified as impaired. The Bank incorporates recent historical experience related to TDRs, including the performance of TDRs that subsequently default, into the calculation of the allowance by loan portfolio segment. Section 4013 of the CARES Act, signed into law of March 27, 2020, gives entities temporary relief from the accounting and disclosure requirements for troubled debt restructurings (TDRs) under ASC 310-40, Receivables: Troubled Debt Restructurings by Creditors, in certain situations. Section 4013 of the CARES Act permits the suspension of ASC 310-40 for loan modifications that are made by financial institutions in response to the COVID-19 pandemic if (1) the borrower was not more than 30 days past due as of December 31, 2019, and (2) the modifications are related to arrangements that defer or delay the payment of principal or interest, or change the interest rate on the loan. All loan modifications made by the Corporation in response to the COVID-19 pandemic have been in accordance with Section 4013 of the CARES Act. ALLOWANCE FOR LOAN LOSSES The allowance is an amount that management believes will be adequate to absorb probable incurred credit losses on existing loans. The allowance is established based on management’s evaluation of the probable incurred credit losses in our portfolio in accordance with GAAP, and is comprised of both specific valuation allowances and general valuation allowances. A loan is classified as impaired when, based on current information and events, it is probable that the Bank will be unable to collect both the principal and interest due under the contractual terms of the loan agreement. Specific valuation allowances are established based on management’s analysis of individually impaired loans. Factors considered by management in determining impairment include payment status, evaluations of the underlying collateral, expected cash flows, 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 the shortfall in relation to the principal and interest owed. If a loan is determined to be impaired and is placed on nonaccrual status, all future payments received are applied to principal and a portion of the allowance is allocated so that the loan is reported, net, at the present value of estimated future cash flows using the loan’s existing rate or at the fair value of collateral if repayment is expected solely from the collateral. The general component covers non-impaired loans and is based on historical loss experience adjusted for current factors. Loans not impaired but classified as substandard and special mention use a historical loss factor on a rolling five year history of net losses. For all other unclassified loans, the historical loss experience is determined by portfolio class and is based on the actual loss history experienced by the Bank over the most recent two years. This actual loss experience is supplemented with other qualitative factors based on the risks present for each portfolio class. These qualitative factors include consideration of the following: (1) lending policies and procedures, including underwriting standards and collection, charge-off and recovery policies, (2) national and local economic and business conditions and developments, including the condition of various market segments, (3) loan profiles and volume of the portfolio, (4) the experience, ability, and depth of lending management and staff, (5) the volume and severity of past due, classified and watch-list loans, non-accrual loans, troubled debt restructurings, and other modifications (6) the quality of the Bank’s loan review system and the degree of oversight by the Bank’s Board of Directors, (7) collateral related issues: secured vs. unsecured, type, declining valuation environment and trend of other related factors, (8) the existence and effect of any concentrations of credit, and changes in the level of such concentrations, (9) the effect of external factors, such as competition and legal and regulatory requirements, on the level of estimated credit losses in the Bank’s current portfolio and (10) the impact of the global economy. The allowance for loan losses is increased through a provision for loan losses charged to operations. Loans are charged against the allowance for loan losses when management believes that the collectability of all or a portion of the principal is unlikely. Management's evaluation of the adequacy of the allowance for loan losses is performed on a periodic basis and takes into consideration such factors as the credit risk grade assigned to the loan, historical loan loss experience and review of specific impaired loans. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in economic conditions. LOANS HELD FOR SALE Certain mortgage loans are originated with the intent to sell. The Bank typically retains the right to service the mortgages upon sale. Loans held for sale are recorded at the lower of cost or fair value in the aggregate and are regularly evaluated for changes in fair value. Commitments to sell the loans that are originated for sale are recorded at fair value. If necessary, a valuation allowance is established with a charge to income for unrealized losses attributable to a change in market rates. CAPITAL LEASES Capital leases are recorded at the lesser of the present value of future cash outlays using a discounted cash flow, or fair value at the beginning of the lease term. Initially, the capital lease is recorded as a building asset, which is depreciated over the shorter of the term of the lease or the estimated life of the asset, and a corresponding long term lease obligation, which amortizes as payments are made toward the lease. Interest expense is also incurred using the discount rate determined at the beginning of the lease term. PREMISES AND EQUIPMENT Land is carried at cost, while buildings, equipment, leasehold improvements and furniture are stated at cost less accumulated depreciation and amortization. Depreciation is charged to current operations under the straight-line method over the estimated useful lives of the assets, which range from 15 to 50 years for buildings and from 3 to 10 years for equipment and furniture. Amortization of leasehold improvements and leased equipment is recognized on the straight-line method over the shorter of the lease term or the estimated life of the asset. Leases of branch offices, which have been capitalized, are included within buildings and depreciated on the straight-line method over the shorter of the lease term or the estimated life of the asset. BANK OWNED LIFE INSURANCE BOLI is recorded at the amount that can be realized under the insurance contracts at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement. Changes in the cash surrender value are recorded in other income. OTHER REAL ESTATE Real estate acquired through foreclosure or deed in lieu of foreclosure is recorded at estimated fair value of the property less estimated costs to dispose at the time of acquisition to establish a new carrying value. Write downs from the carrying value of the loan to estimated fair value which are required at the time of foreclosure are charged to the allowance for loan losses. Subsequent adjustments to the carrying values of such properties resulting from declines in fair value are charged to operations in the period in which the declines occur. INCOME TAXES The Corporation files a consolidated tax return. Deferred tax assets and liabilities are recognized for future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, and for unused tax loss carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates to apply to taxable income in the years in which temporary differences are expected to be recovered or settled, or the tax loss carry forwards are expected to be utilized. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized. A tax position is recognized as a benefit only if it is "more likely than not" that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the "more likely than not" test, no tax benefit is recorded. WEALTH MANAGEMENT GROUP FEE INCOME Assets held in a fiduciary or agency capacity for customers are not included in the accompanying consolidated balance sheets, since such assets are not assets of the Corporation. Wealth Management Group income is recognized on the accrual method as earned based on contractual rates applied to the balances of individual trust accounts. The unaudited market value of trust assets under administration total $2.091 billion, including $305.5 million of assets held under management or administration for the Corporation, at December 31, 2020 and $1.915 billion, including $289.7 million of assets held under management or administration for the Corporation, at December 31, 2019. POSTRETIREMENT BENEFITS Pension Plan: The Chemung Canal Trust Company Pension Plan is a non-contributory defined benefit pension plan. The Pension Plan is a “qualified plan” under the IRS Code and therefore must be funded. Contributions are deposited to the Plan and held in trust. The Plan assets may only be used to pay retirement benefits and eligible plan expenses. The plan was amended such that new employees hired on or after July 1, 2010 would not be eligible to participate in the plan, however, existing participants at that time would continue to accrue benefits. Under the Plan, pension benefits are based upon final average annual compensation where the annual compensation is total base earnings paid plus 401(k) salary deferrals. Bonuses, overtime, commissions and dividends are excluded. The normal retirement benefit equals 1.2% of final average compensation (highest consecutive five years of annual compensation in the prior ten years) times years of service (up to a maximum of 25 years), plus 1% of average monthly compensation for each additional year of service (up to a maximum of 10 years), plus 0.65% of average monthly compensation in excess of covered compensation for each year of credited service up to 35 years. Covered compensation is the average of the social security taxable wage base in effect for the 35 year period prior to normal social security retirement age. Compensation for purposes of determining benefits under the Plan is reviewed annually. On October 20, 2016, the Corporation amended its noncontributory defined benefit pension plan (“pension plan”) to freeze future retirement benefits after December 31, 2016. Beginning on January 1, 2017, both the pay-based and service-based component of the formula used to determine retirement benefits in the pension plan were frozen so that participants will no longer earn further retirement benefits. During the fourth quarter of 2018, the Corporation offered terminated, vested employees the option to receive lump sum settlement payments. The effects of these changes are reflected in the pension plan disclosures as of December 31, 2018. See Note 14 for further details. Defined Contribution Profit Sharing, Savings and Investment Plan: The Corporation also sponsors a 401(K) defined contribution profit sharing, savings and investment plan which covers all eligible employees. The Corporation contributes a non-discretionary 3% of gross annual wages (as defined by the 401(k) plan) for each participant, regardless of the participant’s deferral, in addition to a 50% match up to 6% of gross annual wages. All contributions made on or after January 1, 2017 will vest immediately, while all previous contributions continue vesting on a five-year vesting schedule. The plan's assets consist of Chemung Financial Corporation common stock, as well as other common and preferred stocks, U.S. Government securities, corporate bonds and notes, and mutual funds. The plan’s expense is the amount of non-discretionary and matching contributions and is charged to non-interest expenses in the consolidated statements of income. Defined Benefit Health Care Plan: The Corporation sponsors a defined benefit health care plan that provides postretirement medical benefits to employees who meet minimum age and service requirements. This plan was amended effective July 1, 2006. Prior to this amendment, all retirees age 55 or older were eligible for coverage under the Corporation's self-insured health care plan, contributing 40% of the cost of the coverage. Under the amended plan, coverage for Medicare eligible retirees who reside in the Central New York geographic area is provided under a group sponsored plan with Excellus BlueCross BlueShield called Medicare Blue PPO, with the retiree paying 100% of the premium. Excellus BlueCross BlueShield assumes full liability for the payment of health care benefits incurred after July 1, 2006. Current Medicare eligible retirees who reside outside of the Central New York geographic area were eligible for coverage under the Corporation's self-insurance plan through December 31, 2009, contributing 50% of the cost of coverage. Effective January 1, 2010, these out of area retirees were eligible for coverage under a Medicare Supplement Plan C administered by Excellus BlueCross BlueShield, contributing 50% of the premium. Current retirees between the ages of 55 and 65, will continue to be eligible for coverage under the Corporation's self-insured plan, contributing 50% of the cost of the coverage. Employees who retired after July 1, 2006, and become Medicare eligible will only have access to the Medicare Blue PPO plan. Additionally, effective July 1, 2006, dental benefits were eliminated for all retirees. The cost of the plan is based on actuarial computations of current and future benefits for employees, and is charged to non-interest expenses in the consolidated statements of income. On October 20, 2016, the Corporation amended its defined benefit health care plan to not allow any new retirees into the plan, effective January 1, 2017. The effects of this freeze are reflected in the pension plan disclosures as of December 31, 2019 and 2018. See Note 14. Executive Supplemental Pension Plan: U.S. laws place limitations on compensation amounts that may be included under the Pension Plan. The Executive Supplemental Pension Plan was provided to executives in order to produce total retirement benefits, as a percentage of compensation that is comparable to employees whose compensation is not restricted by the annual compensation limit. Pension amounts, which exceed the applicable Internal Revenue Service code limitations, will be paid under the Executive Supplemental Pension Plan. The Executive Supplemental Pension Plan is a “non-qualified plan” under the Internal Revenue Service Code. Contributions to the Plan are not held in trust; therefore, they may be subject to the claims of creditors in the event of bankruptcy or insolvency. When payments come due under the Plan, cash is distributed from general assets. The cost of the plan is based on actuarial computations of current and future benefits for executives, and is charged to non-interest expense in the consolidated statements of income. Defined Contribution Supplemental Executive Retirement Plan: The Defined Contribution Supplemental Executive Retirement Plan is provided to certain executives to motivate and retain key management employees by providing a nonqualified retirement benefit that is payable at retirement, disability, death and certain other events. The Supplemental Executive Retirement Plan is intended to be an unfunded plan maintained primarily for the purpose of providing deferred compensation benefits for a select group of management or highly compensated employees under Sections 201(2), 301(a)(3) and 401(a)(1) of the Employee Retirement Income Security Act of 1974. The plan’s expense is the Corporation’s annual contribution plus interest credits. STOCK-BASED COMPENSATION Restricted Stock Plan: The Restricted Stock Plan is designed to align the interests of the Corporation’s executives and senior managers with the interests of the Corporation and its shareholders, to ensure the Corporation’s compensation practices are competitive and comparable with those of its peers, and to promote the retention of select management-level employees. Under the terms of the Plan, the Corporation may make discretionary grants of restricted shares of the Corporation’s common stock to or for the benefit of employees selected to participate in the Plan. Each officer of the Corporation, other than the Corporation’s chief executive officer, is eligible to participate in the Plan. Awards are based on the performance, responsibility and contributions of the employee and are targeted at an average of the peer group. The maximum number of shares of the Corporation’s common stock that may be awarded as restricted shares to Plan participants may not exceed 15,000 per calendar year. Twenty percent of the restricted stock awarded to a participant vests each year commencing with the first anniversary date of the award and is 100 percent vested on the fifth anniversary date. Except in the case of the participant’s death, disability, or in the event of a change in control, the participant’s unvested shares of unrestricted stock will be forfeited if the participant leaves the employment of the Bank, or if the participant retires prior to attainment of age 65, unless otherwise waived by the Compensation and Personnel Committee of the Board of Directors. The plan’s expense is recognized as compensation expense ratably over the vesting period for the fair value of the award, measured at the grant date. See Note 15 for more information regarding this Plan. Deferred Directors Fee Plan: A Deferred Directors Fee Plan for non-employee directors provides that directors may elect to defer receipt of all or any part of their fees. Deferrals are either credited with interest compounded quarterly at the Applicable Federal Rate for short-term debt instruments or converted to units, which appreciate or depreciate, as would an actual share of the Corporation’s common stock purchased on the deferral date. Cash deferrals will be paid into an interest bearing account and paid in cash. Units will be paid in shares of common stock. All directors’ fees are charged to non-interest expenses in the consolidated statements of income. Directors’ Compensation Plan: The purpose of the Directors’ Compensation Plan is to enable the Corporation to attract and retain persons of exceptional ability to serve as directors and stockholders in enhancing the value of the common stock of the Corporation. The Plan was originally established to provide for the cash payment of an annual retainer and fees to non-employee directors serving on the Board of Directors of the Corporation and the Bank. The Plan was subsequently amended to provide: (i) payment of additional compensation to each non-employee director in shares of the Corporation’s common stock in an amount equal to the total cash compensation earned by each non-employee director during the year for service on the Board of Directors of each of the Corporation and the Bank, and for each year of service thereafter, to be distributed from treasury shares in January of the following calendar year; and (ii) payment to the President and CEO of the Corporation and the Bank for his service on the Boards of Directors of the Corporation and the Bank in an amount equal in value to the average cash compensation awarded to non-employee directors who have served twelve (12) months of the previous year. The maximum number of shares of Corporation’s common stock that may be granted under the Plan may not exceed 20,000 per year. The Plan provides that the value of a share of common stock granted under the Plan shall be determined as the average of the closing prices of a share of common stock as quoted on the applicable established securities market for each of the prior 30 trading days ending on December 31st of the calendar year. The cost of all cash and stock compensation is charged to non-interest expenses in the consolidated statements of income. In 2019, the annual cash retainer paid to each non-employee director of the Corporation was increased by $6,000 to $11,500 and $19,250 for the Chairman of the Board. The retainer for the Chairman of the Audit Committee was also increased by an additional $2,875 to $14,375. The directors waived their right to stock compensation for the additional retainer fees paid. Incentive Compensation Plan: The purpose of the Incentive Compensation Plan is to attract and retain highly qualified officers and key employees, and to motivate such persons to serve the Corporation and the Bank and to expend maximum effort to improve the business results and earnings of the Corporation by providing to such persons an opportunity to acquire or increase a direct proprietary interest in the operations and future success of the Corporation. To this end, the Incentive Compensation Plan provides for the discretionary grant of cash and/or unrestricted stock, i.e., common stock of the Corporation that is free of any restrictions, such as restrictions on transferability, to select officers and key employees as designated by the Board of Directors in its sole discretion. The maximum number of shares that can be awarded as unrestricted stock under the Incentive Compensation Plan to any individual is 10,000 per calendar year; and the maximum amount that may be earned in cash as an Incentive Award in any calendar year by any individual is $300,000. The right of any eligible employee to receive a grant of an incentive award, whether in the form of cash or unrestricted stock, is subject to performance standards that are specified by either the Compensation Committee or the Board of Directors. The cost of all cash and unrestricted stock compensation is charged to non-interest expenses in the consolidated statements of income. Non-qualified Deferred Compensation Plan: The Deferred Compensation Plan allows a select group of management and employees to defer all or a portion of their annual compensation to a future date. Eligible employees are generally highly compensated employees and are designated by the Board of Directors from time to time. Investments in the plan are recorded as equity investments and deferred amounts are an unfunded liability of the Corporation. The plan requires deferral elections be made before the beginning of the calendar year during which the participant will perform the services to which the compensation relates. Participants in the Plan are required to elect a form of distribution, either lump sum payment or annual installments not to exceed ten years, and a time of distribution, either a specified age or a specified date. The terms and conditions for the deferral of compensation are subject to the provisions of 409A of the IRS Code. The income from investments is recorded in dividend income and non-interest income in the consolidated statements of income. The cost of the plan is recorded in non-interest expenses in the consolidated statements of income. GOODWILL AND INTANGIBLE ASSETS Goodwill resulting from business combinations prior to January 1, 2009 represents the excess of the purchase price over the fair value of the net assets of businesses acquired. Goodwill resulting from business combinations after January 1, 2009, is generally determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree, over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill and intangible assets acquired in a purchase business combination and determined to have an indefinite useful life are not amortized, but tested for impairment at least annually. The Corporation has selected December 31 as the date to perform the annual impairment test. Goodwill is the only intangible asset with an indefinite life on our balance sheet. Intangible assets with definite useful lives are amortized over their estimated useful lives to their estimated residual values. The balances are reviewed for impairment on an ongoing basis or whenever events or changes in business circumstances warrant a review of the carrying value. If impairment is determined to exist, the related write-down of the intangible asset's carrying value is charged to operations. Based on these impairment reviews, the Corporation determined that goodwill and other intangible assets were not impaired at December 31, 2020. The Corporation's intangible assets with definite useful lives resulted from the purchase of the trust business of Partners Trust Bank in May of 2007 and the acquisition of FOFC in April 2011 with balances of $0.2 million and $12 thousand, respectively, at December 31, 2020. The intangible assets related to the acquisition of Canton Bancorp, Inc. in May 2009 were fully amortized at December 31, 2016. The intangible assets related to the acquisition of three former M&T Bank branch offices in March 2008 were fully amortized at December 31, 2015. The intangible assets related to the acquisition of six branches of Bank of America in November of 2013, were fully amortized at December 31, 2020. The trust business intangible is being amortized to expense over the expected useful life of 15 years. The identifiable core deposit intangible related to the FOFC acquisition is being amortized using a 10 year accelerated method. SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE The Corporation enters into sales of securities under agreements to repurchase. The agreements are treated as financings, and the obligations to repurchase securities sold are reflected as liabilities in the consolidated balance sheets. The amount of the securities underlying the agreements continues to be carried in the Corporation's securities portfolio. The Corporation has agreed to repurchase securities identical to those sold. The securities underlying the agreements are under the Corporation's control. DERIVATIVES The Corporation utilizes interest rate swaps with commercial borrowers and third-party counterparties as well as agreements with lead banks in participation loan relationships wherein the Corporation guarantees a portion of the fair value of an interest rate swap entered into by the lead bank. These transactions are accounted for as derivatives. The Company’s derivatives are entered into in connection with its asset and liability management activities and not for trading purposes. The Company does not have any derivatives that are designated as hedges and therefore all derivatives are considered free standing and are recorded at fair value as derivative assets or liabilities on the consolidated balance sheets, with changes in fair value recognized in the consolidated statements of income as non-interest income. Premiums received when entering into derivative contracts are recognized as part of the fair value of the derivative asset or liability and are carried at fair value with any gain/loss at inception and any changes in fair value reflected in income. The Corporation does not typically require its commercial customers to post cash or securities as collateral on its program of back-to-back interest rate swap program. The Corporation may need to post collateral, either cash or certain qualified securities, in proportion to potential increases in unrealized loss positions. OTHER FINANCIAL INSTRUMENTS The Corporation is a party to certain other financial instruments with off-balance sheet risk such as unused portions of lines of credit and commitments to fund new loans. The Corporation's policy is to record such instruments when funded. ADVERTISING COSTS Costs for advertising products and services or for promoting our corporate image are expensed as incurred. EARNINGS PER COMMON SHARE Basic earnings per share is net income divided by the weighted average number of common shares outstanding during the period. Issuable shares including those related to directors’ restricted stock units and directors’ stock compensation are considered outstanding and are included in the computation of basic earnings per share as they are earned. All outstanding unvested share based payment awards that contain rights to nonforfeitable dividends are considered participating securities for this calculation. Restricted stock awards are grants of participating securities. The impact of the participating securities on earnings per share is not material. Earnings per share information is adjusted to present comparative results for stock splits and stock dividends that occur. COMPREHENSIVE INCOME (LOSS) Comprehensive income (loss) consists of net income and other comprehensive income (loss). Other comprehensive income (loss) includes unrealized gains and losses on securities available for sale and changes in the funded status of the Corporation’s defined benefit pension plan and other benefit plans, net of the related tax effect, which are also recognized as separate components of equity. SEGMENT REPORTING The Corporation has identified separate operating segments and internal financial information is primarily reported and aggregated in two lines of business, banking and wealth management services. RECLASSIFICATION Amounts in the prior years' consolidated financial statements are reclassified whenever necessary to conform to the current year's presentation. Reclassification adjustments had no impact on prior year net income or shareholders' equity. RECENT ACCOUNTING PRONOUNCEMENTS On January 1, 2020, the Corporation adopted ASU 2018-14, Compensation – Retirement Benefits (Topic 715-20). This ASU amends ASC 715 to add, remove and clarify disclosure requirements related to defined benefit pension and other postretirement plans. The ASU eliminates the requirement to disclose the amounts in accumulated other comprehensive income expected to be recognized as part of net periodic benefit cost over the next year, and also removes the disclosure requirements for the effects of a one-percentage-point change on the assumed health care costs and the effect of this change in rates on service cost, interest cost and the benefit obligation for postretirement health care benefits. The adoption of the ASU did not have a significant impact on the Corporation's consolidated financial statements. On January 1, 2020, the Corporation adopted ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. The objective of the ASU is to simplify the manner in which an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Additionally, the ASU removes the requirement for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails such qualitative test, to perform Step 2 of the goodwill impairment test. The adoption of the ASU did not have a significant impact on the Corporation's consolidated financial statements. On January 1, 2019, the Corporation adopted ASU 2016-02, Leases (Topic 842). ASU 2016-02 requires companies that lease valuable assets to recognize on their balance sheets the assets and liabilities generated by contracts longer than a year. The Corporation adopted the new lease guidance using the modified retrospective approach and elected the transition option issued under ASU 2018-11, Leases (Topic 842) Targeted Improvements, allowing entities to continue to apply the legacy guidance in ASC 840, Leases, to prior periods, including disclosure requirements. Accordingly, prior period financial results and disclosures have not been adjusted. In addition, the Corporation elected the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allowed the Corporation to carry forward the historical lease classification. Adoption of the new standard resulted in the recording of operating lease right-of-use assets and operating lease liabilities of approximately $8.6 million as of January 1, 2019. The standard did not materially impact our consolidated net earnings and had no impact on cash flows. On January 1, 2019, the Corporation adopted ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. The objective of the ASU is to align the amortization period of premiums and discounts to expectations incorporated in market pricing on the underlying securities. The amendment requires that the premium be amortized to the earliest call date, but does not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The adoption of the ASU did not have a significant impact on the Corporation's consolidated financial statements. On January 1, 2018, the Corporation adopted ASU 2014-09 Revenue from Contracts with Customers (Topic 606) and all subsequent amendments to the ASU (collectively, "ASU 606"), which creates a single framework for recognizing revenue from contracts with customers that fall within its scope and revises when it is appropriate to recognize a gain (loss) from the transfer of nonfinancial assets, such as OREO. The majority of the Corporation's revenues come from interest income and other sources, including loans, securities, and derivatives that are outside the scope of ASC 606. The Corporation's services that fall within the scope of ASC 606 are presented within non-interest income and are recognized as revenue as the Corporation satisfies its obligation to the customer. Services within the scope of ASC 606 include service charges on deposits, interchange income, wealth management fees, and the sale of OREO. The amendments allow for one of two transition methods: full retrospective or modified retrospective. The full retrospective approach requires application to all periods presented. The modified retrospective transition requires application to uncompleted contracts at the date of adoption. Periods prior to the date of adoption are not retrospectively revised, but a cumulative effect is recognized at the date of initial application on uncompleted contracts. The Corporation adopted the new revenue guidance using the modified retrospective approach. There was no significant change upon adoption of the standard, as the new standard did not materially change the way the Corporation currently records revenue for its WMG and deposit related fees at the Bank; as such, no cumulative effect adjustment was recorded. Refer to Note 11 - Revenue from Contracts with Customers for further discussion on the Corporation's accounting policies for revenue sources within the scope of ASC 606. In June, 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The objective of the ASU is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date by replacing the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to form credit loss estimates. The amendments in this ASU are effective for public companies for fiscal years beginning after December 15, 2019, though entities may adopt the amendments earlier for fiscal years beginning after December 15, 2018. In November 2019, the FASB adopted changes to delay the effective date of ASU 2016-13 to January 2023 for certain entities, including certain Securities and Exchange Commission filers, public business entities, and private companies. As a smaller reporting company, the Corporation is eligible for the delay. The Corporation anticipates that the adoption of the CECL model will result in an increase to the Corporation's allowance for loan losses. The Corporation has established a committee to oversee the implementation of CECL and has selected a vendor to assist in the implementation process. In 2018, the committee began establishing parameters which will be used in the CECL model with the selected vendor. The Corporation is running its current incurred loss model and a CECL model concurrently. The Corporation will adopt CECL effective January 1, 2023. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. The update simplifies how all entities assess goodwill for impairment by eliminating Step 2 from the goodwill impairment test. As amended, the goodwill impairment test will consist of one step comparing the fair value of a reporting unit with its carrying amount. An entity should recognize a goodwill impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The adoption of this guidance, effective January 1, 2020, did not have a material impact on the Company's consolidated financial statements. In March 2017, the FASB issued ASU 2017-07, Compensation - Retirement Benefits (Topic 715) - Improving the Presentation of Net Periodic Cost and Net Periodic Postretirement Benefit Cost. The objective of the ASU was to improve guidance related to the presentation of defined benefit costs in the income statement. Specifically, the ASU required that an employer report the service cost component in the same line item(s) as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. Additionally, the ASU allows only the service cost component to be eligible for capitalization, when applicable. Results for reporting periods beginning after January 1, 2018 are presented under ASC 715, while prior period amounts continue to be reported in accordance with legacy GAAP, with comparable periods presented retrospectively for the presentation of the service cost and net periodic postretirement benefit cost in the income statement. The Corporation adopted ASU 2017-07 as of January 1, 2018 and elected the practical expedient, which permits employers to use the amounts disclosed in its pension and other postretirement benefit plan note for the prior comparative periods as the estimation for applying retrospective presentation requirements.

CRM, a wholly-owned subsidiary of the Corporation which was formed and began operations on May 31, 2016, is a Nevada-based captive insurance company which insures against certain risks unique to the operations of the Corporation and its subsidiaries and for which insurance may not be currently available or economically feasible in today's insurance marketplace. CRM pools resources with several other similar insurance company subsidiaries of financial institutions to spread a limited amount of risk among themselves. CRM is subject to regulations of the State of Nevada and undergoes periodic examinations by the Nevada Division of Insurance.

On January 1, 2018, the Corporation adopted ASU 2016-01, an amendment to Recognition and Measurement of Financial Assets and Financial Liabilities (Subtopic 825-10), which requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. The adoption of this guidance resulted in a $40 thousand increase to beginning retained earnings and a $202 thousand decrease to beginning accumulated other comprehensive income (loss).

Management determines the appropriate classification of securities at the time of purchase. If management has the intent and the Corporation has the ability at the time of purchase to hold securities until maturity, they are classified as held to maturity and carried at amortized cost. Securities to be held for indefinite periods of time or not intended to be held to maturity are classified as available for sale and carried at fair value. Unrealized holding gains and losses on securities classified as available for sale are excluded from earnings and are reported as accumulated other comprehensive income (loss) in shareholders' equity, net of the related tax effects, until realized. Realized gains and losses are determined using the specific identification method.

Management evaluates securities for OTTI on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. For securities in an unrealized loss position, management considers the extent and duration of the unrealized loss, and the financial condition and near-term prospects of the issuer. Management also assesses whether it intends to sell, or it is more likely than not that it will be required to sell, a security in an unrealized loss position before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the entire difference between amortized cost and fair value is recognized as impairment through earnings. For debt securities that do not meet the aforementioned criteria, the amount of impairment is split into two components as follows: 1) OTTI related to credit loss, which must be recognized in the income statement and 2) OTTI related to other factors, which is recognized in other comprehensive income. The credit loss is defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis. For equity securities, the entire amount of impairment is recognized through earnings.

The Bank is a member of both the FHLBNY and the FRBNY. FHLBNY members are required to own a certain amount of stock based on the level of borrowings and other factors, while FRBNY members are required to own a certain amount of stock based on a percentage of the Bank’s capital stock and surplus. FHLBNY and FRBNY stock are carried at cost and classified as non-marketable equities and periodically evaluated for impairment based on ultimate recovery of par value. Cash dividends are reported as income.

Loans are stated at the amount of unpaid principal balance net of deferred loan fees. Additionally, recorded investment in loans includes interest receivable on loans. The Corporation has the ability and intent to hold its loans for the foreseeable future. The Corporation’s loan portfolio is comprised of the following segments: (i) commercial and agricultural, (ii) commercial mortgages, (iii) residential mortgages, and (iv) consumer loans.

Commercial and agricultural loans primarily consist of loans to small to mid-sized businesses in the Corporation’s market area in a diverse range of industries. These loans are typically made on the basis of the borrower’s ability to make repayment from the cash flow of the borrower’s business. Commercial mortgage loans are generally non-owner occupied commercial properties or owner occupied commercial real estate with larger balances. Repayment of these loans is often dependent upon the successful operation and management of the properties and the businesses occupying the properties, as well as on the collateral securing the loan. Residential mortgage loans are generally made on the basis of the borrower’s ability to make repayment from their employment and other income, but are secured by real property. Consumer loans include home equity lines of credit and home equity loans, which exhibit many of the same characteristics as residential mortgages. Indirect and other consumer loans are typically secured by depreciable assets, such as automobiles or boats, and are dependent on the borrower’s continuing financial stability.

Interest on loans is accrued and credited to operations using the interest method. Past due status is based on the contractual terms of the loan. The accrual of interest is generally discontinued and previously accrued interest is reversed when loans become 90 days delinquent. Loans may also be placed on non-accrual status if management believes such classification is otherwise warranted. All payments received on non-accrual loans are applied to principal. Loans are returned to accrual status when they become current as to principal and interest and remain current for a period of six consecutive months or when, in the opinion of management, the Corporation expects to receive all of its original principal and interest. Loan origination fees and certain direct loan origination costs are deferred and amortized over the life of the loan as an adjustment to yield, using the interest method.

A TDR is a formally renegotiated loan in which the Bank, for economic or legal reasons related to a borrower’s financial difficulties, grants a concession to the borrower that would not have been granted to the borrower otherwise. Not all loans that are restructured as a TDR are classified as non-accrual before the restructuring occurs. Restructured loans can convert from non-accrual to accrual status when said loans have demonstrated performance, generally evidenced by six months of payment performance in accordance with the restructured terms and when, in the opinion of management, the Bank expects to receive all of its contractual principal and interest due under the restructured terms.

TDRs are individually evaluated for impairment and included in the separately identified impairment disclosures. TDRs are measured at the present value of estimated future cash flows using the loan's effective rate at inception. If a TDR is considered to be a collateral dependent loan, the loan is reported, net, at the fair value of the collateral. For TDRs that subsequently default, the Bank determines the amount of the allowance on that loan in accordance with the accounting policy for the allowance for loan losses on loans individually identified as impaired. The Bank incorporates recent historical experience related to TDRs, including the performance of TDRs that subsequently default, into the calculation of the allowance by loan portfolio segment.

Section 4013 of the CARES Act, signed into law of March 27, 2020, gives entities temporary relief from the accounting and disclosure requirements for troubled debt restructurings (TDRs) under ASC 310-40, Receivables: Troubled Debt Restructurings by Creditors, in certain situations. Section 4013 of the CARES Act permits the suspension of ASC 310-40 for loan modifications that are made by financial institutions in response to the COVID-19 pandemic if (1) the borrower was not more than 30 days past due as of December 31, 2019, and (2) the modifications are related to arrangements that defer or delay the payment of principal or interest, or change the interest rate on the loan. All loan modifications made by the Corporation in response to the COVID-19 pandemic have been in accordance with Section 4013 of the CARES Act.

A loan is classified as impaired when, based on current information and events, it is probable that the Bank will be unable to collect both the principal and interest due under the contractual terms of the loan agreement. Specific valuation allowances are established based on management’s analysis of individually impaired loans. Factors considered by management in determining impairment include payment status, evaluations of the underlying collateral, expected cash flows, 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 the shortfall in relation to the principal and interest owed. If a loan is determined to be impaired and is placed on nonaccrual status, all future payments received are applied to principal and a portion of the allowance is allocated so that the loan is reported, net, at the present value of estimated future cash flows using the loan’s existing rate or at the fair value of collateral if repayment is expected solely from the collateral.

The general component covers non-impaired loans and is based on historical loss experience adjusted for current factors. Loans not impaired but classified as substandard and special mention use a historical loss factor on a rolling five year history of net losses. For all other unclassified loans, the historical loss experience is determined by portfolio class and is based on the actual loss history experienced by the Bank over the most recent two years. This actual loss experience is supplemented with other qualitative factors based on the risks present for each portfolio class. These qualitative factors include consideration of the following: (1) lending policies and procedures, including underwriting standards and collection, charge-off and recovery policies, (2) national and local economic and business conditions and developments, including the condition of various market segments, (3) loan profiles and volume of the portfolio, (4) the experience, ability, and depth of lending management and staff, (5) the volume and severity of past due, classified and watch-list loans, non-accrual loans, troubled debt restructurings, and other modifications (6) the quality of the Bank’s loan review system and the degree of oversight by the Bank’s Board of Directors, (7) collateral related issues: secured vs. unsecured, type, declining valuation environment and trend of other related factors, (8) the existence and effect of any concentrations of credit, and changes in the level of such concentrations, (9) the effect of external factors, such as competition and legal and regulatory requirements, on the level of estimated credit losses in the Bank’s current portfolio and (10) the impact of the global economy.

The allowance for loan losses is increased through a provision for loan losses charged to operations. Loans are charged against the allowance for loan losses when management believes that the collectability of all or a portion of the principal is unlikely. Management's evaluation of the adequacy of the allowance for loan losses is performed on a periodic basis and takes into consideration such factors as the credit risk grade assigned to the loan, historical loan loss experience and review of specific

Certain mortgage loans are originated with the intent to sell. The Bank typically retains the right to service the mortgages upon sale. Loans held for sale are recorded at the lower of cost or fair value in the aggregate and are regularly evaluated for changes in fair value. Commitments to sell the loans that are originated for sale are recorded at fair value. If necessary, a valuation allowance is established with a charge to income for unrealized losses attributable to a change in market rates.

Capital leases are recorded at the lesser of the present value of future cash outlays using a discounted cash flow, or fair value at the beginning of the lease term. Initially, the capital lease is recorded as a building asset, which is depreciated over the shorter of the term of the lease or the estimated life of the asset, and a corresponding long term lease obligation, which amortizes as payments are made toward the lease. Interest expense is also incurred using the discount rate determined at the beginning of the lease term.

Land is carried at cost, while buildings, equipment, leasehold improvements and furniture are stated at cost less accumulated depreciation and amortization. Depreciation is charged to current operations under the straight-line method over the estimated useful lives of the assets, which range from 15 to 50 years for buildings and from 3 to 10 years for equipment and furniture. Amortization of leasehold improvements and leased equipment is recognized on the straight-line method over the shorter of the lease term or the estimated life of the asset. Leases of branch offices, which have been capitalized, are included within buildings and depreciated on the straight-line method over the shorter of the lease term or the estimated life of the asset.

Real estate acquired through foreclosure or deed in lieu of foreclosure is recorded at estimated fair value of the property less estimated costs to dispose at the time of acquisition to establish a new carrying value. Write downs from the carrying value of the loan to estimated fair value which are required at the time of foreclosure are charged to the allowance for loan losses. Subsequent adjustments to the carrying values of such properties resulting from declines in fair value are charged to operations in the period in which the declines occur.

The Corporation files a consolidated tax return. Deferred tax assets and liabilities are recognized for future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, and for unused tax loss carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates to apply to taxable income in the years in which temporary differences are expected to be recovered or settled, or the tax loss carry forwards are expected to be utilized. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized.

Assets held in a fiduciary or agency capacity for customers are not included in the accompanying consolidated balance sheets, since such assets are not assets of the Corporation. Wealth Management Group income is recognized on the accrual method as earned based on contractual rates applied to the balances of individual trust accounts. The unaudited market value of trust assets under administration total $2.091 billion, including $305.5 million of assets held under management or administration for the Corporation, at December 31, 2020 and $1.915 billion, including $289.7 million of assets held under management or administration for the Corporation, at December 31, 2019.

The Chemung Canal Trust Company Pension Plan is a non-contributory defined benefit pension plan. The Pension Plan is a “qualified plan” under the IRS Code and therefore must be funded. Contributions are deposited to the Plan and held in trust. The Plan assets may only be used to pay retirement benefits and eligible plan expenses. The plan was amended such that new employees hired on or after July 1, 2010 would not be eligible to participate in the plan, however, existing participants at that time would continue to accrue benefits.

Under the Plan, pension benefits are based upon final average annual compensation where the annual compensation is total base earnings paid plus 401(k) salary deferrals. Bonuses, overtime, commissions and dividends are excluded. The normal retirement benefit equals 1.2% of final average compensation (highest consecutive five years of annual compensation in the prior ten years) times years of service (up to a maximum of 25 years), plus 1% of average monthly compensation for each additional year of service (up to a maximum of 10 years), plus 0.65% of average monthly compensation in excess of covered compensation for each year of credited service up to 35 years. Covered compensation is the average of the social security taxable wage base in effect for the 35 year period prior to normal social security retirement age. Compensation for purposes of determining benefits under the Plan is reviewed annually.

On October 20, 2016, the Corporation amended its noncontributory defined benefit pension plan (“pension plan”) to freeze future retirement benefits after December 31, 2016. Beginning on January 1, 2017, both the pay-based and service-based component of the formula used to determine retirement benefits in the pension plan were frozen so that participants will no longer earn further retirement benefits. During the fourth quarter of 2018, the Corporation offered terminated, vested employees the option to receive lump sum settlement payments. The effects of these changes are reflected in the pension plan disclosures as of December 31, 2018. See Note 14 for further details.

The Corporation also sponsors a 401(K) defined contribution profit sharing, savings and investment plan which covers all eligible employees. The Corporation contributes a non-discretionary 3% of gross annual wages (as defined by the 401(k) plan) for each participant, regardless of the participant’s deferral, in addition to a 50% match up to 6% of gross annual wages. All contributions made on or after January 1, 2017 will vest immediately, while all previous contributions continue vesting on a five-year vesting schedule. The plan's assets consist of Chemung Financial Corporation common stock, as well as other common and preferred stocks, U.S. Government securities, corporate bonds and notes, and mutual funds. The plan’s expense is the amount of non-discretionary and matching contributions and is charged to non-interest expenses in the consolidated statements of income.

The Corporation sponsors a defined benefit health care plan that provides postretirement medical benefits to employees who meet minimum age and service requirements. This plan was amended effective July 1, 2006. Prior to this amendment, all retirees age 55 or older were eligible for coverage under the Corporation's self-insured health care plan, contributing 40% of the cost of the coverage. Under the amended plan, coverage for Medicare eligible retirees who reside in the Central New York geographic area is provided under a group sponsored plan with Excellus BlueCross BlueShield called Medicare Blue PPO, with the retiree paying 100% of the premium. Excellus BlueCross BlueShield assumes full liability for the payment of health care benefits incurred after July 1, 2006. Current Medicare eligible retirees who reside outside of the Central New York geographic area were eligible for coverage under the Corporation's self-insurance plan through December 31, 2009, contributing 50% of the cost of coverage. Effective January 1, 2010, these out of area retirees were eligible for coverage under a Medicare Supplement Plan C administered by Excellus BlueCross BlueShield, contributing 50% of the premium. Current retirees between the ages of 55 and 65, will continue to be eligible for coverage under the Corporation's self-insured plan, contributing 50% of the cost of the coverage. Employees who retired after July 1, 2006, and become Medicare eligible will only have access to the Medicare Blue PPO plan. Additionally, effective July 1, 2006, dental benefits were eliminated for all retirees. The cost of the plan is based on actuarial computations of current and future benefits for employees, and is charged to non-interest expenses in the consolidated statements of income.

U.S. laws place limitations on compensation amounts that may be included under the Pension Plan. The Executive Supplemental Pension Plan was provided to executives in order to produce total retirement benefits, as a percentage of compensation that is comparable to employees whose compensation is not restricted by the annual compensation limit. Pension amounts, which exceed the applicable Internal Revenue Service code limitations, will be paid under the Executive Supplemental Pension Plan.

The Executive Supplemental Pension Plan is a “non-qualified plan” under the Internal Revenue Service Code. Contributions to the Plan are not held in trust; therefore, they may be subject to the claims of creditors in the event of bankruptcy or insolvency. When payments come due under the Plan, cash is distributed from general assets. The cost of the plan is based on actuarial computations of current and future benefits for executives, and is charged to non-interest expense in the consolidated statements of income.

The Restricted Stock Plan is designed to align the interests of the Corporation’s executives and senior managers with the interests of the Corporation and its shareholders, to ensure the Corporation’s compensation practices are competitive and comparable with those of its peers, and to promote the retention of select management-level employees. Under the terms of the Plan, the Corporation may make discretionary grants of restricted shares of the Corporation’s common stock to or for the benefit of employees selected to participate in the Plan. Each officer of the Corporation, other than the Corporation’s chief executive officer, is eligible to participate in the Plan. Awards are based on the performance, responsibility and contributions of the employee and are targeted at an average of the peer group. The maximum number of shares of the Corporation’s common stock that may be awarded as restricted shares to Plan participants may not exceed 15,000 per calendar year. Twenty percent of the restricted stock awarded to a participant vests each year commencing with the first anniversary date of the award and is 100 percent vested on the fifth anniversary date. Except in the case of the participant’s death, disability, or in the event of a change in control, the participant’s unvested shares of unrestricted stock will be forfeited if the participant leaves the employment of the Bank, or if the participant retires prior to attainment of age 65, unless otherwise waived by the Compensation and Personnel Committee of the Board of Directors. The plan’s expense is recognized as compensation expense ratably over the vesting period for the fair value of the award, measured at the grant date. See Note 15 for more information regarding this Plan.

A Deferred Directors Fee Plan for non-employee directors provides that directors may elect to defer receipt of all or any part of their fees. Deferrals are either credited with interest compounded quarterly at the Applicable Federal Rate for short-term debt instruments or converted to units, which appreciate or depreciate, as would an actual share of the Corporation’s common stock purchased on the deferral date. Cash deferrals will be paid into an interest bearing account and paid in cash. Units will be paid in shares of common stock. All directors’ fees are charged to non-interest expenses in the consolidated statements of income.

The purpose of the Directors’ Compensation Plan is to enable the Corporation to attract and retain persons of exceptional ability to serve as directors and stockholders in enhancing the value of the common stock of the Corporation. The Plan was originally established to provide for the cash payment of an annual retainer and fees to non-employee directors serving on the Board of Directors of the Corporation and the Bank. The Plan was subsequently amended to provide: (i) payment of additional compensation to each non-employee director in shares of the Corporation’s common stock in an amount equal to the total cash compensation earned by each non-employee director during the year for service on the Board of Directors of each of the Corporation and the Bank, and for each year of service thereafter, to be distributed from treasury shares in January of the following calendar year; and (ii) payment to the President and CEO of the Corporation and the Bank for his service on the Boards of Directors of the Corporation and the Bank in an amount equal in value to the average cash compensation awarded to non-employee directors who have served twelve (12) months of the previous year. The maximum number of shares of Corporation’s common stock that may be granted under the Plan may not exceed 20,000 per year. The Plan provides that the value of a share of common stock granted under the Plan shall be determined as the average of the closing prices of a share of common stock as quoted on the applicable established securities market for each of the prior 30 trading days ending on December 31st of the calendar year. The cost of all cash and stock compensation is charged to non-interest expenses in the consolidated statements of income. In 2019, the annual cash retainer paid to each non-employee director of the Corporation was increased by $6,000 to $11,500 and $19,250 for the Chairman of the Board. The retainer for the Chairman of the Audit Committee was also increased by an additional $2,875 to $14,375. The directors waived their right to stock compensation for the additional retainer fees paid.

The purpose of the Incentive Compensation Plan is to attract and retain highly qualified officers and key employees, and to motivate such persons to serve the Corporation and the Bank and to expend maximum effort to improve the business results and earnings of the Corporation by providing to such persons an opportunity to acquire or increase a direct proprietary interest in the operations and future success of the Corporation. To this end, the Incentive Compensation Plan provides for the discretionary grant of cash and/or unrestricted stock, i.e., common stock of the Corporation that is free of any restrictions, such as restrictions on transferability, to select officers and key employees as designated by the Board of Directors in its sole discretion. The maximum number of shares that can be awarded as unrestricted stock under the Incentive Compensation Plan to any individual is 10,000 per calendar year; and the maximum amount that may be earned in cash as an Incentive Award in any calendar year by any individual is $300,000. The right of any eligible employee to receive a grant of an incentive award, whether in the form of cash or unrestricted stock, is subject to performance standards that are specified by either the Compensation Committee or the Board of Directors. The cost of all cash and unrestricted stock compensation is charged to non-interest expenses in the consolidated statements of income.

The Deferred Compensation Plan allows a select group of management and employees to defer all or a portion of their annual compensation to a future date. Eligible employees are generally highly compensated employees and are designated by the Board of Directors from time to time. Investments in the plan are recorded as equity investments and deferred amounts are an unfunded liability of the Corporation. The plan requires deferral elections be made before the beginning of the calendar year during which the participant will perform the services to which the compensation relates. Participants in the Plan are required to elect a form of distribution, either lump sum payment or annual installments not to exceed ten years, and a time of distribution, either a specified age or a specified date. The terms and conditions for the deferral of compensation are subject to the provisions of 409A of the IRS Code. The income from investments is recorded in dividend income and non-interest income in the consolidated statements of income. The cost of the plan is recorded in non-interest expenses in the consolidated statements of income.

Goodwill resulting from business combinations prior to January 1, 2009 represents the excess of the purchase price over the fair value of the net assets of businesses acquired. Goodwill resulting from business combinations after January 1, 2009, is generally determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree, over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill and intangible assets acquired in a purchase business combination and determined to have an indefinite useful life are not amortized, but tested for impairment at least annually. The Corporation has selected December 31 as the date to perform the annual impairment test. Goodwill is the only intangible asset with an indefinite life on our balance sheet. Intangible assets with definite useful lives are amortized over their estimated useful lives to their estimated residual values. The balances are reviewed for impairment on an ongoing basis or whenever events or changes in business circumstances warrant a review of the carrying value. If impairment is determined to exist, the related write-down of the intangible asset's carrying value is charged to operations. Based on these impairment reviews, the Corporation determined that goodwill and other intangible assets were not impaired at December 31, 2020.

The Corporation's intangible assets with definite useful lives resulted from the purchase of the trust business of Partners Trust Bank in May of 2007 and the acquisition of FOFC in April 2011 with balances of $0.2 million and $12 thousand, respectively, at December 31, 2020. The intangible assets related to the acquisition of Canton Bancorp, Inc. in May 2009 were fully amortized at December 31, 2016. The intangible assets related to the acquisition of three former M&T Bank branch offices in March 2008 were fully amortized at December 31, 2015. The intangible assets related to the acquisition of six branches of Bank of America in November of 2013, were fully amortized at December 31, 2020. The trust business intangible is being amortized to expense over the expected useful life of 15 years. The identifiable core deposit intangible related to the FOFC acquisition is being amortized using a 10 year accelerated method.

The Corporation enters into sales of securities under agreements to repurchase. The agreements are treated as financings, and the obligations to repurchase securities sold are reflected as liabilities in the consolidated balance sheets. The amount of the securities underlying the agreements continues to be carried in the Corporation's securities portfolio. The Corporation has agreed to repurchase securities identical to those sold. The securities underlying the agreements are under the Corporation's control.

The Corporation utilizes interest rate swaps with commercial borrowers and third-party counterparties as well as agreements with lead banks in participation loan relationships wherein the Corporation guarantees a portion of the fair value of an interest rate swap entered into by the lead bank. These transactions are accounted for as derivatives. The Company’s derivatives are entered into in connection with its asset and liability management activities and not for trading purposes.

Basic earnings per share is net income divided by the weighted average number of common shares outstanding during the period. Issuable shares including those related to directors’ restricted stock units and directors’ stock compensation are considered outstanding and are included in the computation of basic earnings per share as they are earned. All outstanding unvested share based payment awards that contain rights to nonforfeitable dividends are considered participating securities for this calculation. Restricted stock awards are grants of participating securities. The impact of the participating securities on earnings per share is not material. Earnings per share information is adjusted to present comparative results for stock splits and stock dividends that occur.

On January 1, 2020, the Corporation adopted ASU 2018-14, Compensation – Retirement Benefits (Topic 715-20). This ASU amends ASC 715 to add, remove and clarify disclosure requirements related to defined benefit pension and other postretirement plans. The ASU eliminates the requirement to disclose the amounts in accumulated other comprehensive income expected to be recognized as part of net periodic benefit cost over the next year, and also removes the disclosure requirements for the effects of a one-percentage-point change on the assumed health care costs and the effect of this change in rates on service cost, interest cost and the benefit obligation for postretirement health care benefits. The adoption of the ASU did not have a significant impact on the Corporation's consolidated financial statements.

On January 1, 2020, the Corporation adopted ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. The objective of the ASU is to simplify the manner in which an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Additionally, the ASU removes the requirement for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails such qualitative test, to perform Step 2 of the goodwill impairment test. The adoption of the ASU did not have a significant impact on the Corporation's consolidated financial statements.

On January 1, 2019, the Corporation adopted ASU 2016-02, Leases (Topic 842). ASU 2016-02 requires companies that lease valuable assets to recognize on their balance sheets the assets and liabilities generated by contracts longer than a year. The Corporation adopted the new lease guidance using the modified retrospective approach and elected the transition option issued under ASU 2018-11, Leases (Topic 842) Targeted Improvements, allowing entities to continue to apply the legacy guidance in ASC 840, Leases, to prior periods, including disclosure requirements. Accordingly, prior period financial results and disclosures have not been adjusted. In addition, the Corporation elected the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allowed the Corporation to carry forward the historical lease classification. Adoption of the new standard resulted in the recording of operating lease right-of-use assets and operating lease liabilities of approximately $8.6 million as of January 1, 2019. The standard did not materially impact our consolidated net earnings and had no impact on cash flows.

On January 1, 2019, the Corporation adopted ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. The objective of the ASU is to align the amortization period of premiums and discounts to expectations incorporated in market pricing on the underlying securities. The amendment requires that the premium be amortized to the earliest call date, but does not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The adoption of the ASU did not have a significant impact on the Corporation's consolidated financial statements.

On January 1, 2018, the Corporation adopted ASU 2014-09 Revenue from Contracts with Customers (Topic 606) and all subsequent amendments to the ASU (collectively, "ASU 606"), which creates a single framework for recognizing revenue from contracts with customers that fall within its scope and revises when it is appropriate to recognize a gain (loss) from the transfer of nonfinancial assets, such as OREO. The majority of the Corporation's revenues come from interest income and other sources, including loans, securities, and derivatives that are outside the scope of ASC 606. The Corporation's services that fall within the scope of ASC 606 are presented within non-interest income and are recognized as revenue as the Corporation satisfies its obligation to the customer. Services within the scope of ASC 606 include service charges on deposits, interchange income, wealth management fees, and the sale of OREO. The amendments allow for one of two transition methods: full retrospective or modified retrospective. The full retrospective approach requires application to all periods presented. The modified retrospective transition requires application to uncompleted contracts at the date of adoption. Periods prior to the date of adoption are not retrospectively revised, but a cumulative effect is recognized at the date of initial application on uncompleted contracts. The Corporation adopted the new revenue guidance using the modified retrospective approach. There was no significant change upon adoption of the standard, as the new standard did not materially change the way the Corporation currently records revenue for its WMG and deposit related fees at the Bank; as such, no cumulative effect adjustment was recorded. Refer to Note 11 - Revenue from Contracts with Customers for further discussion on the Corporation's accounting policies for revenue sources within the scope of ASC 606.

In June, 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The objective of the ASU is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date by replacing the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to form credit loss estimates. The amendments in this ASU are effective for public companies for fiscal years

beginning after December 15, 2019, though entities may adopt the amendments earlier for fiscal years beginning after December 15, 2018. In November 2019, the FASB adopted changes to delay the effective date of ASU 2016-13 to January 2023 for certain entities, including certain Securities and Exchange Commission filers, public business entities, and private companies. As a smaller reporting company, the Corporation is eligible for the delay. The Corporation anticipates that the adoption of the CECL model will result in an increase to the Corporation's allowance for loan losses. The Corporation has established a committee to oversee the implementation of CECL and has selected a vendor to assist in the implementation process. In 2018, the committee began establishing parameters which will be used in the CECL model with the selected vendor. The Corporation is running its current incurred loss model and a CECL model concurrently. The Corporation will adopt CECL effective January 1, 2023.

In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. The update simplifies how all entities assess goodwill for impairment by eliminating Step 2 from the goodwill impairment test. As amended, the goodwill impairment test will consist of one step comparing the fair value of a reporting unit with its carrying amount. An entity should recognize a goodwill impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The adoption of this guidance, effective January 1, 2020, did not have a material impact on the Company's consolidated financial statements.

In March 2017, the FASB issued ASU 2017-07, Compensation - Retirement Benefits (Topic 715) - Improving the Presentation of Net Periodic Cost and Net Periodic Postretirement Benefit Cost. The objective of the ASU was to improve guidance related to the presentation of defined benefit costs in the income statement. Specifically, the ASU required that an employer report the service cost component in the same line item(s) as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. Additionally, the ASU allows only the service cost component to be eligible for capitalization, when applicable. Results for reporting periods beginning after January 1, 2018 are presented under ASC 715, while prior period amounts continue to be reported in accordance with legacy GAAP, with comparable periods presented retrospectively for the presentation of the service cost and net periodic postretirement benefit cost in the income statement. The Corporation adopted ASU 2017-07 as of January 1, 2018 and elected the practical expedient, which permits employers to use the amounts disclosed in its pension and other postretirement benefit plan note for the prior comparative periods as the estimation for applying retrospective presentation requirements.