Chemung Financial (CHMG) 10-K 23 Mar 22 2021 FY Annual report Financial data

COVER

COVER - USD ($)	12 Months Ended
	Dec. 31, 2021	Mar. 11, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-35741
Entity Registrant Name	CHEMUNG FINANCIAL CORP
Entity Incorporation, State or Country Code	NY
Entity Tax Identification Number	16-1237038
Entity Address, Address Line One	One Chemung Canal Plaza
Entity Address, City or Town	Elmira
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	14901
City Area Code	607
Local Phone Number	737-3711
Title of 12(b) Security	Common Stock, Par Value $0.01 Per Share
Trading Symbol	CHMG
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 165,897,974
Entity Common Stock, Shares Outstanding		4,672,949
Documents Incorporated by Reference	Portions of the Proxy Statement for the Annual Meeting of Shareholders to be held on June 7, 2022 are incorporated by reference into Part III, Items 10, 11, 12, 13, and 14 of this Form 10-K.
Entity Central Index Key	0000763563
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false

AUDIT INFORMATION

AUDIT INFORMATION	12 Months Ended
	Dec. 31, 2021
Audit Information [Abstract]
Auditor Name	Crowe LLP
Auditor Firm ID	173
Auditor Location	Livingston, New Jersey

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($)	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Cash and due from financial institutions	$ 17,365,000	$ 29,467,000
Interest-earning deposits in other financial institutions	9,616,000	79,071,000
Total cash and cash equivalents	26,981,000	108,538,000
Equity investments, at fair value	2,964,000	2,542,000
Securities available for sale, at estimated fair value	792,026,000	554,611,000
Securities held to maturity	3,790,000	2,469,000
FHLBNY and FRBNY Stock, at cost	4,218,000	3,150,000
Loans, net of deferred loan fees	1,518,249,000	1,536,463,000
Allowance for loan losses	(21,025,000)	(20,924,000)
Total ending loans balance	1,497,224,000	1,515,539,000
Loans held for sale	396,000	170,000
Premises and equipment, net	17,969,000	20,119,000
Operating lease right-of-use assets	7,234,000	7,145,000
Goodwill	21,824,000	21,824,000
Other intangible assets, net	15,000	258,000
Bank owned life insurance	2,825,000	3,059,000
Accrued interest and other assets	41,009,000	40,027,000
Total assets	2,418,475,000	2,279,451,000
Deposits:
Non-interest-bearing	739,607,000	620,423,000
Interest-bearing	1,415,826,000	1,417,351,000
Total deposits	2,155,433,000	2,037,774,000
FHLBNY overnight advances	14,570,000	0
Capital lease obligation	3,594,000	3,849,000
Operating lease liabilities	7,378,000	7,264,000
Dividends payable	1,450,000	1,214,000
Accrued interest payable and other liabilities	24,595,000	29,651,000
Total liabilities	2,207,020,000	2,079,752,000
Shareholders' equity:
Common stock, $0.01 par value per share, 10,000,000 shares authorized;   5,310,076 issued at December 31, 2021 and December 31, 2020	53,000	53,000
Additional-paid-in capital	46,901,000	46,764,000
Retained earnings	188,877,000	168,006,000
Treasury stock, at cost (636,720 shares at December 31, 2021; 642,239   shares at December 31, 2020)	(17,846,000)	(17,525,000)
Accumulated other comprehensive (loss) income	(6,530,000)	2,401,000
Total shareholders' equity	211,455,000	199,699,000
Total liabilities and shareholders' equity	$ 2,418,475,000	$ 2,279,451,000

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Securities held to maturity, estimated fair value	$ 3,796	$ 2,501
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares issued (in shares)	5,310,076	5,310,076
Treasury stock, at cost (in shares)	636,720	642,239

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Interest and Dividend Income:
Loans, including fees	$ 58,861	$ 59,089
Taxable securities	8,935	6,004
Tax exempt securities	1,061	1,060
Interest-earning deposits	151	754
Total interest and dividend income	69,008	66,907
Interest Expense:
Deposits	3,284	3,827
Borrowed funds	135	161
Total interest expense	3,419	3,988
Net interest income	65,589	62,919
Provision for loan losses	17	4,239
Net interest income after provision for loan losses	65,572	58,680
Non-Interest Income:
Net gains on securities transactions	0	0
Change in fair value of equity investments	246	89
Net gain on sales of loans held for sale	1,073	1,730
Net gains (losses) on sales of other real estate owned	(16)	(79)
Income from bank owned life insurance	52	161
Other	3,385	2,529
Total non-interest income	23,870	21,124
Non-Interest Expenses:
Salaries and wages	24,413	24,250
Pension and other employee benefits	6,086	5,553
Other components of net periodic pension cost (benefit)	(1,583)	(1,017)
Net occupancy expenses	5,873	5,885
Furniture and equipment expenses	1,669	2,078
Data processing expense	8,519	7,576
Professional services	1,932	1,725
Legal accruals and settlements	0	0
Amortization of intangible assets	243	484
Marketing and advertising expense	792	631
Other real estate owned expenses	40	102
FDIC insurance	1,408	987
Loan expense	1,037	1,173
Other	5,253	6,508
Total non-interest expenses	55,682	55,935
Income before income tax expense	33,760	23,869
Income tax expense	7,335	4,607
Net income	$ 26,425	$ 19,262
Weighted average shares outstanding, basic (in shares)	4,683	4,802
Weighted average shares outstanding, diluted (in shares)	4,683	4,802
Basic earnings per share (in dollars per share)	$ 5.64	$ 4.01
Diluted earnings per share (in dollars per share)	$ 5.64	$ 4.01
WMG
Non-Interest Income:
Revenues from contracts with customer	$ 11,072	$ 9,492
Service Charge on Deposits
Non-Interest Income:
Revenues from contracts with customer	3,214	3,134
Interchange revenue from debit card transactions
Non-Interest Income:
Revenues from contracts with customer	$ 4,844	$ 4,068

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 26,425	$ 19,262
Other comprehensive income (loss):
Unrealized holding gains (losses) on securities available for sale	(15,632)	10,415
Reclassification adjustment gains realized in net income	0	0
Net unrealized gains (losses)	(15,632)	10,415
Tax effect	4,010	(2,656)
Net of tax amount	(11,622)	7,759
Change in funded status of defined benefit pension plan and other benefit plans:
Net gain (loss) arising during the period	3,655	506
Reclassification adjustment for amortization of prior service benefit	(220)	(220)
Prior service credit	0	0
Reclassification adjustment for partial pension settlement loss included in pension expense	0	0
Reclassification adjustment for amortization of net actuarial losses	212	300
Total before tax effect	3,647	586
Tax effect	(956)	(145)
Net of tax amount	2,691	441
Total other comprehensive income (loss)	(8,931)	8,200
Comprehensive income	$ 17,494	$ 27,462

CONSOLIDATED STATEMENTS OF SHAR

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2019		$ 182,627	$ 53	$ 46,382	$ 153,701	$ (11,710)	$ (5,799)
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income		19,262			19,262
Other comprehensive income (loss)		8,200					8,200
Restricted stock awards		672		672
Distribution of treasury stock for directors' deferred compensation plan		(14)		(182)		168
Distribution of shares of treasury stock granted for employee restricted stock awards, net		0		(403)		403
Restricted stock units for directors' deferred compensation plan		29		29
Cash dividends declared		(4,957)			(4,957)
Distribution of shares of treasury stock for directors' compensation		350		145		205
Distribution of shares of treasury stock for employee compensation		101		42		59
Sale of shares of treasury stock	[1]	1,018		74		944
Repurchase of common stock		(7,589)				(7,589)
Forfeiture of restricted stock awards		0		5		(5)
Ending balance at Dec. 31, 2020		199,699	53	46,764	168,006	(17,525)	2,401
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income		26,425			26,425
Other comprehensive income (loss)		(8,931)					(8,931)
Restricted stock awards		535		535
Distribution of treasury stock for directors' deferred compensation plan		3		(72)		75
Distribution of shares of treasury stock granted for employee restricted stock awards, net		0		(578)		578
Restricted stock units for directors' deferred compensation plan		19		19		0
Cash dividends declared		(5,554)			(5,554)
Distribution of shares of treasury stock for directors' compensation		317		64		253
Distribution of shares of treasury stock for employee compensation		132		27		105
Sale of shares of treasury stock	[1]	426		142		284
Repurchase of common stock		(1,616)				(1,616)
Ending balance at Dec. 31, 2021		$ 211,455	$ 53	$ 46,901	$ 188,877	$ (17,846)	$ (6,530)
[1]	All treasury stock sales were completed at the prevailing market price with the Chemung Canal Trust Company Profit Sharing, Savings, and Investment Plan which is a defined contribution plan sponsored by the Bank.

CONSOLIDATED STATEMENTS OF SH_2

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Distribution of shares of treasury stock for directors' deferred compensation (in shares)	2,707	6,426
Distribution of shares of treasury stock granted for employee restricted stock awards (in shares)	20,763	14,805
Cash dividends declared (in dollars per share)	$ 1.19	$ 1.04
Distribution of shares of treasury stock for directors' compensation (in shares)	9,291	7,923
Distribution of shares of treasury stock for employee compensation (in shares)	3,860	2,274
Sale of shares of treasury stock (in shares)	10,322	36,104
Purchase of shares of treasury stock (in shares)	41,424	257,018
Restricted stock awards, forfeited (in shares)		112

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 26,425	$ 19,262
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of right-of-use assets	759	856
Amortization of intangible assets	243	484
Deferred income tax (benefit) expense	570	(86)
Provision for loan losses	17	4,239
Loss on disposal of fixed assets	16	247
Depreciation and amortization of fixed assets	2,501	2,918
Amortization of premiums on securities, net	5,373	1,842
Gains on sales of loans held for sale, net	(1,073)	(1,730)
Proceeds from sales of loans held for sale	38,157	47,996
Loans originated and held for sale	(37,310)	(45,251)
Net (gains) losses on sale of other real estate owned	16	46
Write-downs on OREO	0	38
Net change in fair value of equity investments	(246)	(89)
Net gains on securities transactions	0	0
Proceeds from sales of trading assets	161	91
Purchase of trading assets	(337)	(370)
(Increase) decrease in other assets	(1,954)	(9,883)
Increase (decrease) in accrued interest payable	(53)	(37)
Expense related to restricted stock units for directors' deferred compensation plan	19	29
Expense related to employee stock compensation	132	101
Expense related to employee restricted stock awards	535	672
Payments on operating leases	(1,202)	(820)
Increase (decrease) in other liabilities	2,764	8,265
Income from bank owned life insurance	(52)	(161)
Net cash provided by operating activities	35,461	28,659
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sales of securities available for sale	0	0
Proceeds from maturities, calls, and principal paydowns on securities available for sale	143,193	67,888
Proceeds from maturities and principal collected on securities held to maturity	937	2,007
Purchases of securities available for sale	(401,594)	(329,836)
Purchases of securities held to maturity	(2,277)	(1,361)
Purchase of FHLBNY and FRBNY stock	(3,467)	(51)
Redemption of FHLBNY and FRBNY stock	2,399	0
Purchases of premises and equipment	(367)	(867)
Proceeds from sale of other real estate owned	210	627
Proceeds from sale of loans	0	5,227
Proceeds from bank owned life insurance	286	213
Net (increase) decrease in loans	18,196	(239,695)
Net cash (used by) provided by investing activities	(242,484)	(495,848)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase (decrease) in demand deposits, interest-bearing demand accounts, savings accounts, and insured money market accounts	207,033	341,081
Net increase (decrease) in time deposits	(89,374)	124,555
Net change in FHLBNY overnight advances	14,570	0
Principal payments made on capital lease	(255)	(236)
Purchase of treasury stock	(1,616)	(7,589)
Sale of treasury stock	426	1,018
Cash dividends paid	(5,318)	(5,006)
Net cash (used in) provided by financing activities	125,466	453,823
Net increase (decrease) in cash and cash equivalents	(81,557)	(13,366)
Cash and cash equivalents, beginning of period	108,538	121,904
Cash and cash equivalents, end of period	26,981	108,538
Cash paid during the year for:
Interest	3,472	4,025
Income Taxes	5,675	6,005
Supplemental disclosure of non-cash activity:
Transfer of loans to other real estate owned	102	431
Dividends declared, not yet paid	1,450	1,214
Repurchase of common stock in lieu of employee payroll taxes	(270)	(238)
Distribution of treasury stock for directors' deferred compensation plan	3	(14)
Distribution of treasury stock for directors' compensation	317	350
Forfeiture of shares of restricted stock awards	$ 0	$ (5)

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2021
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 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, until January 1, 2022. 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 $2.325 billion, including $344.2 million of assets held under management or administration for the Corporation, at December 31, 2021 and $2.091 billion, including $305.5 million of assets held under management or administration for the Corporation, at December 31, 2020. 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 commissions. Bonuses, overtime, 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. 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 13 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. 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-insured 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 13 for further details. 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 2021 Equity Incentive Plan On June 8, 2021, the Corporation's shareholders approved the Corporation's 2021 Equity Incentive Plan (the "2021 Plan") which provides for the grant of stock-based awards to officers, employees and directors of the Corporation and the Bank. A Form S-8 Registration Statement was filed with the SEC on June 18, 2021 registering shares to be awarded under the 2021 Plan. The prior plan shall remain in existence solely for the purpose of administering outstanding grants. The 2021 Plan is designed to align the interests of the Corporation’s executives, senior managers and directors 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 and directors. Under the terms of the 2021 Plan, the Compensation and Personnel Committee may approve discretionary grants of restricted shares of the Corporation’s common stock to or for the benefit of employees selected to participate in the 2021 Plan, the chief executive officer and members of the Board of Directors. Awards are based on the performance, responsibility and contributions of the individual and are targeted at the median of the peer group. The maximum number of shares of the Corporation’s common stock that may be awarded as restricted shares related to the 2021 Plan may not exceed 170,000, upon which time the 2021 Plan will be amended, presented and approved by the Corporation's shareholders to include additional shares of the Corporation's common stock. Awards under the 2021 Plans may be vested no earlier than the first anniversary of the date on which the award is granted. Compensation expense for shares granted will be recognized over the vesting period of the award based upon average closing price of the Corporation's stock for each of the prior 30 trading days ending on the grant date. A Directors Deferred Fee Plan, an addendum to the 2021 Plan, for non-employee directors of the Corporation or the Bank, 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. See Note 14 for further details. 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, 2021. 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 with a remaining balance of $15 thousand. 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 identifiable core deposit intangible related to the FOFC acquisition was being amortized using a 10 year accelerated method and was fully amortized at December 31, 2021. SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE The Corporation has the ability to enter 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’

RESTRICTIONS ON CASH AND DUE FR

RESTRICTIONS ON CASH AND DUE FROM BANK ACCOUNTS	12 Months Ended
	Dec. 31, 2021
RESTRICTIONS ON CASH AND DUE FROM BANK ACCOUNTS [Abstract]
RESTRICTIONS ON CASH AND DUE FROM BANK ACCOUNTS	RESTRICTIONS ON CASH AND DUE FROM BANK ACCOUNTS Generally, the Corporation is required to maintain balances with the Federal Reserve Bank of New York based upon outstanding balances of deposit transaction accounts. However, as announced on March 15, 2020, the Federal Reserve Board reduced reserve requirement ratios to zero percent, effective March 26, 2020, due to the COVID-19 pandemic. Therefore, at December 31, 2021 and 2020, there were no reserve requirements with the Federal Reserve Bank of New York. The Corporation also maintains a pre-funded settlement account with a financial institution in the amount of $1.6 million for electronic funds transaction settlement purposes at December 31, 2021 and 2020.

SECURITIES

SECURITIES	12 Months Ended
	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
SECURITIES	SECURITIES Amortized cost and estimated fair value of securities available for sale at December 31, 2021 and 2020 are as follows (in thousands): 2021 2020 Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value U.S. treasury notes and bonds $ 61,084 $ 60,431 $ — $ — Mortgage-backed securities, residential $ 582,060 $ 577,361 $ 458,245 $ 467,866 Obligations of states and political subdivisions 40,299 42,303 40,662 43,405 Corporate bonds and notes 22,750 22,848 9,000 9,035 SBA loan pools 89,216 89,083 34,455 34,305 Total $ 795,409 $ 792,026 $ 542,362 $ 554,611 Gross unrealized gains and losses on securities available for sale at December 31, 2021 and 2020, were as follows (in thousands): 2021 2020 Unrealized Unrealized Unrealized Unrealized U.S. treasury notes and bonds $ 27 $ 680 $ — $ — Mortgage-backed securities, residential $ 4,032 $ 8,731 $ 9,822 $ 201 Obligations of states and political subdivisions 2,004 — 2,743 — Corporate bonds and notes 180 82 47 12 SBA loan pools 344 477 42 192 Total $ 6,587 $ 9,970 $ 12,654 $ 405 The amortized cost and estimated fair value of debt securities available for sale are shown below by contractual maturity. Expected maturities may differ from contractual maturities if borrowers have the right to call or prepay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately (in thousands): December 31, 2021 Amortized Fair Within one year $ 1,302 $ 1,307 After one, but within five years 37,598 39,099 After five, but within ten years 25,087 25,652 After ten years 470 500 Mortgage-backed securities, residential 582,060 577,361 U.S. treasury notes and bonds 59,676 59,024 SBA loan pools 89,216 89,083 Total $ 795,409 $ 792,026 Actual maturities may differ from contractual maturities above because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. There were no proceeds from sales and calls of securities resulting in gains or losses during the years ended December 31, 2021 and 2020. Amortized cost and estimated fair value of securities held to maturity at December 31, 2021 and 2020 are as follows (in thousands): 2021 2020 Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value Obligations of states and political subdivisions $ 2,157 $ 2,157 $ 326 $ 326 Time deposits with other financial institutions 1,633 1,639 2,143 2,175 $ 3,790 $ 3,796 $ 2,469 $ 2,501 Gross unrealized gains and losses on securities held to maturity at December 31, 2021 and 2020, were as follows (in thousands): 2021 2020 Unrealized Unrealized Unrealized Unrealized Time deposits with other financial institutions $ 6 $ — $ 32 $ — Total $ 6 $ — $ 32 $ — There were no sales of securities held to maturity in 2021 or 2020. The contractual maturity of securities held to maturity is as follows at December 31, 2021 (in thousands): December 31, 2021 Amortized Fair Within one year $ 2,171 $ 2,176 After one, but within five years 819 820 After five, but within ten years 800 800 Total $ 3,790 $ 3,796 The following table summarizes the investment securities available for sale with unrealized losses at December 31, 2021 and December 31, 2020 by aggregated major security type and length of time in a continuous unrealized position (in thousands): Less than 12 months 12 months or longer Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized 2021 U.S. treasury notes and bonds $ 49,084 $ 680 $ — $ — $ 49,084 $ 680 Mortgage-backed securities, residential 293,720 4,502 122,050 4,229 415,770 8,731 Corporate bonds and notes 4,928 72 1,989 10 6,917 82 SBA loan pools 51,235 296 13,769 181 65,004 477 Total temporarily impaired securities $ 398,967 $ 5,550 $ 137,808 $ 4,420 $ 536,775 $ 9,970 Less than 12 months 12 months or longer Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized 2020 Mortgage-backed securities, residential $ 70,037 $ 200 $ 970 $ 1 $ 71,007 $ 201 Corporate bonds and notes 2,988 12 — — 2,988 12 SBA loan pools 15,245 156 3,636 36 18,881 192 Total temporarily impaired securities $ 88,270 $ 368 $ 4,606 $ 37 $ 92,876 $ 405 Other-Than-Temporary-Impairment As of December 31, 2021, the majority of the Corporation’s unrealized losses in the investment securities portfolio related to mortgage-backed securities. At December 31, 2021, the unrealized losses related to mortgage-backed securities issued by U.S. government sponsored entities, Fannie Mae and Freddie Mac as well as corporate bonds and notes. Because the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Corporation does not have the intent to sell these securities and it is not likely that it will be required to sell these securities before their anticipated recovery, the Corporation does not consider these securities to be other-than-temporarily impaired at December 31, 2021. Pledged Securities The fair value of securities pledged to secure public funds on deposit or for other purposes as required by law was $242.9 million at December 31, 2021 and $180.8 million at December 31, 2020. There are no securities pledged to secure securities sold under agreements to repurchase at December 31, 2021 and 2020, respectively. Concentrations There are no securities of a single issuer (other than securities of U.S. Government sponsored enterprises) that exceed 10% of shareholders' equity at December 31, 2021 or 2020. Equity Method Investments The Corporation has an equity investment in Cephas Capital Partners, L.P. This small business investment company was established for the purpose of providing financing to small businesses in market areas served by the Corporation, including minority-owned small businesses and those that are anticipated to create jobs for the low to moderate income levels in the targeted areas. As of December 31, 2021 and 2020, this investment totaled $0.1 million and $0.2 million, respectively, is included in other assets, and is accounted for under the equity method of accounting.

LOANS AND ALLOWANCE FOR LOAN LO

LOANS AND ALLOWANCE FOR LOAN LOSSES	12 Months Ended
	Dec. 31, 2021
Loans and Leases Receivable Disclosure [Abstract]
LOANS AND ALLOWANCE FOR LOAN LOSSES	LOANS AND ALLOWANCE FOR LOAN LOSSES The composition of the loan portfolio, net of deferred loan fees is summarized as follows (in thousands): December 31, 2021 December 31, 2020 Commercial and agricultural: Commercial and industrial $ 256,893 $ 368,663 Agricultural 394 283 Commercial mortgages: Construction 82,204 61,945 Commercial mortgages 720,358 654,663 Residential mortgages 259,334 239,401 Consumer loans: Home equity lines and loans 70,670 78,547 Indirect consumer loans 118,569 120,538 Direct consumer loans 9,827 12,423 Total loans, net of deferred loan fees 1,518,249 1,536,463 Interest receivable on loans 4,133 5,035 Total recorded investment in loans $ 1,522,382 $ 1,541,498 Residential mortgages held for sale as of December 31, 2021 and 2020 totaling $0.4 million and $0.2 million, respectively, are not included in the above table. Residential mortgages totaling $204.2 million at December 31, 2021 and $101.9 million at December 31, 2020 were pledged under a blanket collateral agreement for the Corporation's line of credit with the FHLBNY. As of December 31, 2021, the Corporation had outstanding loan balances of $43.2 million for PPP loans which are included in commercial and industrial loans in the table above. These loans require no allowance for loan losses as of December 31, 2021 since they are government guaranteed loans. The following tables present the activity in the allowance for loan losses by portfolio segment for the years ended December 31, 2021 and 2020, respectively (in thousands): December 31, 2021 Allowance for loan losses Commercial, and Agricultural Commercial Mortgages Residential Mortgages Consumer Loans Total Beginning balance: $ 4,493 $ 11,496 $ 2,079 $ 2,856 $ 20,924 Charge Offs: (28) (43) (75) (593) (739) Recoveries: 312 3 10 498 823 Net (charge offs) recoveries 284 (40) (65) (95) 84 Provision (1,186) 2,100 (211) (686) 17 Ending balance $ 3,591 $ 13,556 $ 1,803 $ 2,075 $ 21,025 December 31, 2020 Allowance for loan losses Commercial, and Agricultural Commercial Mortgages Residential Mortgages Consumer Loans Total Beginning balance: $ 10,227 $ 8,869 $ 1,252 $ 3,130 $ 23,478 Charge Offs: (4,068) (2,143) (56) (1,113) (7,380) Recoveries: 89 14 86 398 587 Net recoveries (charge offs) (3,979) (2,129) 30 (715) (6,793) Provision (1,755) 4,756 797 441 4,239 Ending balance $ 4,493 $ 11,496 $ 2,079 $ 2,856 $ 20,924 The following tables present the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of December 31, 2021 and December 31, 2020 (in thousands): December 31, 2021 Allowance for loan losses Commercial Commercial Mortgages Residential Mortgages Consumer Loans Total Ending allowance balance attributable to loans: Individually evaluated for impairment $ 1,394 $ 1,571 $ — $ 65 $ 3,030 Collectively evaluated for impairment 2,197 11,985 1,803 2,010 17,995 Total ending allowance balance $ 3,591 $ 13,556 $ 1,803 $ 2,075 $ 21,025 December 31, 2020 Allowance for loan losses Commercial Commercial Mortgages Residential Mortgages Consumer Loans Total Ending allowance balance attributable to loans: Individually evaluated for impairment $ 1,401 $ 74 $ — $ 52 $ 1,527 Collectively evaluated for impairment 3,092 11,422 2,079 2,804 19,397 Total ending allowance balance $ 4,493 $ 11,496 $ 2,079 $ 2,856 $ 20,924 December 31, 2021 Loans: Commercial Commercial Mortgages Residential Mortgages Consumer Loans Total Loans individually evaluated for impairment $ 2,427 $ 7,967 $ 938 $ 315 $ 11,647 Loans collectively evaluated for impairment 255,586 796,858 259,029 199,262 1,510,735 Total ending loans balance $ 258,013 $ 804,825 $ 259,967 $ 199,577 $ 1,522,382 December 31, 2020 Loans: Commercial Commercial Mortgages Residential Mortgages Consumer Loans Total Loans individually evaluated for impairment $ 3,400 $ 5,117 $ 1,271 $ 801 $ 10,589 Loans collectively evaluated for impairment 366,852 714,028 238,742 211,287 1,530,909 Total ending loans balance $ 370,252 $ 719,145 $ 240,013 $ 212,088 $ 1,541,498 The following tables present loans individually evaluated for impairment recognized by class of loans as of December 31, 2021 and December 31, 2020, the average recorded investment and interest income recognized by class of loans as of the years ended December 31, 2021 and 2020 (in thousands): December 31, 2021 December 31, 2020 Unpaid Principal Balance Recorded Investment Allowance for Loan Losses Allocated Unpaid Principal Balance Recorded Investment Allowance for Loan Losses Allocated With no related allowance recorded: Commercial and agricultural: Commercial and industrial $ 954 $ 948 $ — $ 1,960 $ 1,963 $ — Commercial mortgages: Construction 129 130 — 188 189 — Commercial mortgages 6,940 4,278 — 6,814 4,760 — Residential mortgages 951 938 — 1,283 1,271 — Consumer loans: Home equity lines and loans 185 169 — 645 631 — With an allowance recorded: Commercial and agricultural: Commercial and industrial 5,350 1,479 1,394 5,228 1,437 1,401 Commercial mortgages: Commercial mortgages 3,550 3,559 1,571 258 168 74 Consumer loans: Home equity lines and loans 146 146 65 170 170 52 Total $ 18,205 $ 11,647 $ 3,030 $ 16,546 $ 10,589 $ 1,527 December 31, 2021 December 31, 2020 Average Recorded Investment Interest Income Recognized (1) Average Recorded Investment Interest Income Recognized (1) With no related allowance recorded: Commercial and agricultural: Commercial and industrial $ 1,505 $ 6 $ 936 $ 16 Commercial mortgages: Construction 159 6 219 8 Commercial mortgages 4,650 30 4,103 16 Residential mortgages 1,015 40 952 25 Consumer loans: Home equity lines & loans 273 7 446 7 With an allowance recorded: Commercial and agricultural: Commercial and industrial 1,505 8 4,981 4 Commercial mortgages: Commercial mortgages 2,236 49 2,949 — Consumer loans: Home equity lines and loans 157 — 104 — Total $ 11,500 $ 146 $ 14,690 $ 76 (1) Cash basis interest income approximates interest income recognized. The following tables present the recorded investment in non-accrual and loans past due 90 days or more and still accruing by class of loans as of December 31, 2021 and December 31, 2020 (in thousands): Non-accrual Loans Past Due 90 Days or More and Still Accruing 2021 2020 2021 2020 Commercial and agricultural: Commercial and industrial $ 1,932 $ 2,167 $ 4 $ 2 Commercial mortgages: Construction 34 55 — — Commercial mortgages 3,844 4,415 — — Residential mortgages 1,039 1,632 — — Consumer loans: Home equity lines and loans 790 1,159 — — Indirect consumer loans 462 519 — — Direct consumer loans 13 5 — — Total $ 8,114 $ 9,952 $ 4 $ 2 The following tables present the aging of the recorded investment in loans as of December 31, 2021 and December 31, 2020 (in thousands): December 31, 2021 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total Past Due Loans Not Past Due Total Commercial and agricultural: Commercial and industrial $ 413 $ 148 $ 26 $ 587 $ 257,031 $ 257,618 Agricultural — — — — 395 395 Commercial mortgages: Construction — — — — 82,435 82,435 Commercial mortgages 24 224 1,302 1,550 720,840 722,390 Residential mortgages 580 32 652 1,264 258,703 259,967 Consumer loans: Home equity lines and loans 256 69 424 749 70,105 70,854 Indirect consumer loans 1,179 424 255 1,858 116,997 118,855 Direct consumer loans 24 11 13 48 9,820 9,868 Total $ 2,476 $ 908 $ 2,672 $ 6,056 $ 1,516,326 $ 1,522,382 December 31, 2020 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total Past Due Loans Not Past Due Total Commercial and agricultural: Commercial and industrial $ 520 $ 14 $ 30 $ 564 $ 369,404 $ 369,968 Agricultural — — — — 284 284 Commercial mortgages: Construction — — — — 62,164 62,164 Commercial mortgages 1,438 3,696 308 5,442 651,539 656,981 Residential mortgages 817 406 461 1,684 238,329 240,013 Consumer loans: Home equity lines and loans 521 41 474 1,036 77,725 78,761 Indirect consumer loans 1,268 198 252 1,718 119,135 120,853 Direct consumer loans 34 2 — 36 12,438 12,474 Total $ 4,598 $ 4,357 $ 1,525 $ 10,480 $ 1,531,018 $ 1,541,498 Troubled Debt Restructurings: A modification of a loan may result in classification as a TDR when a borrower is experiencing financial difficulty and the modification constitutes a concession. The Corporation offers various types of modifications which may involve a change in the schedule of payments, a reduction in the interest rate, an extension of the maturity date, extending the maturity date at an interest rate lower than the current market rate for new debt with similar risk, requesting additional collateral, releasing collateral for consideration, substituting or adding a new borrower or guarantor, a permanent reduction of the recorded investment in the loan or a permanent reduction of the interest on the loan. Under Section 4013 of the CARES Act, loans less than 30 days past due as of December 31, 2019 will be considered current for COVID-19 related modifications and therefore will not be treated as TDRs. At its highest point as of May 31, 2020, in conformance with section 4013 of the CARES Act, total loan forbearances represented 15.77% of the Corporation's total loan portfolio, or $242.5 million. As of December 31, 2021, in conformance with Section 4013 of the CARES Act, no loans remained in modified status. As of December 31, 2021 and 2020, the Corporation has a recorded investment in TDRs of $10.3 million and $6.7 million, respectively. There were specific reserves of $1.9 million allocated for TDRs at December 31, 2021 and $0.4 million allocated for December 31, 2020. As of December 31, 2021, TDRs totaling $5.6 million were accruing interest under the modified terms and $4.7 million were on non-accrual status. As of December 31, 2020, TDRs totaling $2.8 million were accruing interest under the modified terms and $3.9 million were on non-accrual status. The Corporation has committed no additional amounts to customers with outstanding loans that are classified as TDRs as of December 31, 2021 and 2020. During the years ended December 31, 2021 and 2020, the terms of certain loans were modified as TDRs. During the year ended December 31, 2021, the terms and conditions of two commercial and industrial and four commercial mortgage loans were modified as TDRs. The modification of the terms of all of these loans included a postponement or reduction of the scheduled amortized payments for greater than a three month period. During the year ended December 31, 2020, the modification of the terms of one residential mortgage loan included the postponement of scheduled amortized payments for a period of greater than three-months. Additionally, two commercial and industrial loans were modified with the maturity date extended on both loans and one with an extension at a stated rate lower than the current market rate for new debt with similar risk. Additionally, two commercial and industrial loans had payments deferred and both loans were risk rated Substandard while one loan was in non-accrual status prior to the modification. The modifications of four commercial mortgage loans included the deferral of payments with three of the loans risk rated Substandard and in non-accrual status, three of the borrowers were over one year past due in real estate taxes and two of the loans were over 30 days past due in payments. The modifications of three residential mortgages included the deferral of payments while all three were in non-accrual status prior to the modifications, two were risk rated Substandard and one was over 30 days past due in payments. The modifications of three home equity lines and loans included the deferral of payments while all three loans were risk rated Substandard and in non-accrual status prior to the modifications. The following table presents loans by class modified as troubled debt restructurings that occurred during the years ended December 31, 2021 and 2020 (in thousands): December 31, 2021 Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Troubled debt restructurings: Commercial and agricultural: Commercial and industrial 2 $ 502 $ 502 Commercial mortgages: Commercial mortgages 4 6,094 6,094 Total 6 $ 6,596 $ 6,596 The TDRs described above increased the allowance for loan losses by $1.7 million and resulted in no charge offs during the year ended December 31, 2021. December 31, 2020 Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Troubled debt restructurings: Commercial and agricultural: Commercial and industrial 4 $ 2,068 $ 2,068 Commercial mortgages: Commercial mortgages 4 1,297 1,297 Residential mortgages 4 997 997 Consumer loans: Home equity lines and loans 3 738 738 Total 15 $ 5,100 $ 5,100 The TDRs described above increased the allowance for loan losses by $0.2 million and resulted in no charge offs during the year ended December 31, 2020. A loan is considered to be in payment default once it is 90 days contractually past due under the modified terms. There were no payment defaults on any loans previously modified as troubled debt restructurings during the year ended December 31, 2021, within twelve months following the modification. The following table presents loans by class modified as TDRs for which there was a payment default within twelve months following the modification during the year ended December 31, 2020: December 31, 2020 Number of Loans Recorded Investment Consumer loans: Home equity lines and loans 1 $ 170 Total 1 $ 170 Credit Quality Indicators The Corporation establishes a risk rating at origination for all commercial loans. The main factors considered in assigning risk ratings include, but are not limited to: historic and future debt service coverage, collateral position, operating performance, liquidity, leverage, payment history, management ability, and the customer’s industry. Commercial relationship managers monitor all loans in their respective portfolios for any changes in the borrower’s ability to service their debt and affirm the risk ratings for the loans at least annually. For the retail loans, which include residential mortgages, indirect and direct consumer loans, home equity lines and loans, and credit cards, once a loan is properly approved and closed, the Corporation evaluates credit quality based upon loan repayment. Retail loans are not rated until they become 90 days past due. The Corporation uses the risk rating system to identify criticized and classified loans. Commercial relationships within the criticized and classified risk ratings are analyzed quarterly. The Corporation uses the following definitions for criticized and classified loans (which are consistent with regulatory guidelines): Special Mention – Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or the institution’s credit position as some future date. Substandard – Loans classified as substandard are inadequately protected by the current net worth and paying capability of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected. Doubtful – Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered to be pass rated loans. Loans listed as not rated are included in groups of homogeneous loans. Based on the analyses performed as of December 31, 2021 and 2020, the risk category of the recorded investment of loans by class of loans is as follows (in thousands): December 31, 2021 Not Rated Pass Special Mention Substandard Doubtful Total Commercial and agricultural: Commercial and industrial $ — $ 250,529 $ 2,892 $ 3,108 $ 1,089 $ 257,618 Agricultural — 395 — — — 395 Commercial mortgages: Construction — 82,404 — 31 — 82,435 Commercial mortgages — 672,741 31,072 17,458 1,119 722,390 Residential mortgages 258,928 — 1,039 — 259,967 Consumer loans Home equity lines and loans 70,064 — — 790 — 70,854 Indirect consumer loans 118,393 — — 462 — 118,855 Direct consumer loans 9,855 — — 13 — 9,868 Total $ 457,240 $ 1,006,069 $ 33,964 $ 22,901 $ 2,208 $ 1,522,382 December 31, 2020 Not Rated Pass Special Mention Substandard Doubtful Total Commercial and agricultural: Commercial and industrial $ — $ 360,500 $ 2,999 $ 5,092 $ 1,377 $ 369,968 Agricultural — 284 — — — 284 Commercial mortgages: Construction — 59,885 — 2,279 — 62,164 Commercial mortgages — 616,090 23,631 16,128 1,132 656,981 Residential mortgages 238,381 — — 1,632 — 240,013 Consumer loans Home equity lines and loans 77,602 — — 1,159 — 78,761 Indirect consumer loans 120,334 — — 519 — 120,853 Direct consumer loans 12,470 — — 4 — 12,474 Total $ 448,787 $ 1,036,759 $ 26,630 $ 26,813 $ 2,509 $ 1,541,498 The Corporation considers the performance of the loan portfolio and its impact on the allowance for loan losses. For residential and consumer loan classes, the Corporation also evaluates credit quality based on the aging status of the loan, which was previously presented, and by payment activity. Non-performing loans include non-accrual loans and non-accrual troubled debt restructurings. The following table presents the recorded investment in residential and consumer loans based on payment activity as of December 31, 2021 and 2020 (in thousands): December 31, 2021 Consumer Loans Residential Mortgages Home Equity Lines and Loans Indirect Consumer Loans Other Direct Consumer Loans Performing $ 258,928 $ 70,064 $ 118,393 $ 9,855 Non-Performing 1,039 790 462 13 Total $ 259,967 $ 70,854 $ 118,855 $ 9,868 December 31, 2020 Consumer Loans Residential Mortgages Home Equity Lines and Loans Indirect Consumer Loans Other Direct Consumer Loans Performing $ 238,381 $ 77,602 $ 120,334 $ 12,470 Non-Performing 1,632 1,159 519 4 Total $ 240,013 $ 78,761 $ 120,853 $ 12,474

PREMISES AND EQUIPMENT

PREMISES AND EQUIPMENT	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
PREMISES AND EQUIPMENT	PREMISES AND EQUIPMENT Premises and equipment at December 31, 2021 and 2020 are as follows (in thousands): 2021 2020 Land $ 4,710 $ 4,803 Buildings 40,726 41,957 Projects in progress 5 65 Equipment and furniture 37,183 37,183 Leasehold improvements 5,318 5,285 87,942 89,293 Less accumulated depreciation and amortization 69,973 69,174 Net book value $ 17,969 $ 20,119 Depreciation expense was $2.5 million and $2.9 million for 2021 and 2020, respectively. Capital Leases The Corporation leases certain buildings under capital leases. The lease arrangements require monthly payments through 2036. The Corporation has included these leases in premises and equipment as follows: 2021 2020 Buildings $ 5,572 $ 5,572 Accumulated depreciation (2,208) (1,875) Net book value $ 3,364 $ 3,697

LEASES

LEASES	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
LEASES	LEASES Operating Leases The Corporation leases certain branch properties under long-term, operating lease agreements. The leases expire at various dates through 2033 and generally include renewal options. As of December 31, 2021, the weighted average remaining lease term was 9.5 years with a weighted average discount rate of 3.33%. Rent expense was 1.0 million for each of the years ended December 31, 2021 and 2020, respectively. Certain leases provide for increases in future minimum annual rent payments as defined in the lease agreements. The Corporation’s operating lease agreements contain both lease and non-lease components, which are generally accounted for separately. The Corporation’s lease agreements do not contain any residual value guarantees. The Corporation's operating lease obligation increased $0.8 million as of December 31, 2021 due to modification agreements, the addition of a new location in Clarence, New York, and the relocation of an existing branch location in Bath, New York. Leased branch properties at December 31, 2021 and December 31, 2020 consist of the following (in thousands): December 31, 2021 December 31, 2020 Operating lease right-of-use asset $ 7,145 $ 8,001 Less: accumulated amortization (759) (705) Less: lease termination (313) (151) Add: new lease agreement and modifications $ 1,161 $ — Operating lease right-of-use-assets, net $ 7,234 $ 7,145 The following is a schedule by year of the undiscounted cash flows of the operating lease liabilities, excluding CAM charges, as of December 31, 2021 (in thousands): Year Amount 2022 $ 979 2023 992 2024 924 2025 841 2026 845 2027 and thereafter 4,021 Total minimum lease payments 8,602 Less: amount representing interest (1,224) Present value of net minimum lease payments $ 7,378 As of December 31, 2021, the Corporation had no operating leases that were signed, but had not yet commenced. Finance Leases The Corporation leases certain buildings under finance leases. The lease arrangements require monthly payments through 2036. As of December 31, 2021, the weighted average remaining lease term was 11.1 years years with a weighted average discount rate of 3.37%. The Corporation has included these leases in premises and equipment as of December 31, 2021 and December 31, 2020. The following is a schedule by year of future minimum lease payments under the capitalized lease, together with the present value of net minimum lease payments as of December 31, 2021 (in thousands): Year Amount 2022 $ 391 2023 391 2024 391 2025 409 2026 425 2027 and thereafter 2,415 Total minimum lease payments 4,422 Less: amount representing interest (828) Present value of net minimum lease payments $ 3,594 As of December 31, 2021, the Corporation had no finance leases that were signed, but had not yet commenced.
LEASES	LEASES Operating Leases The Corporation leases certain branch properties under long-term, operating lease agreements. The leases expire at various dates through 2033 and generally include renewal options. As of December 31, 2021, the weighted average remaining lease term was 9.5 years with a weighted average discount rate of 3.33%. Rent expense was 1.0 million for each of the years ended December 31, 2021 and 2020, respectively. Certain leases provide for increases in future minimum annual rent payments as defined in the lease agreements. The Corporation’s operating lease agreements contain both lease and non-lease components, which are generally accounted for separately. The Corporation’s lease agreements do not contain any residual value guarantees. The Corporation's operating lease obligation increased $0.8 million as of December 31, 2021 due to modification agreements, the addition of a new location in Clarence, New York, and the relocation of an existing branch location in Bath, New York. Leased branch properties at December 31, 2021 and December 31, 2020 consist of the following (in thousands): December 31, 2021 December 31, 2020 Operating lease right-of-use asset $ 7,145 $ 8,001 Less: accumulated amortization (759) (705) Less: lease termination (313) (151) Add: new lease agreement and modifications $ 1,161 $ — Operating lease right-of-use-assets, net $ 7,234 $ 7,145 The following is a schedule by year of the undiscounted cash flows of the operating lease liabilities, excluding CAM charges, as of December 31, 2021 (in thousands): Year Amount 2022 $ 979 2023 992 2024 924 2025 841 2026 845 2027 and thereafter 4,021 Total minimum lease payments 8,602 Less: amount representing interest (1,224) Present value of net minimum lease payments $ 7,378 As of December 31, 2021, the Corporation had no operating leases that were signed, but had not yet commenced. Finance Leases The Corporation leases certain buildings under finance leases. The lease arrangements require monthly payments through 2036. As of December 31, 2021, the weighted average remaining lease term was 11.1 years years with a weighted average discount rate of 3.37%. The Corporation has included these leases in premises and equipment as of December 31, 2021 and December 31, 2020. The following is a schedule by year of future minimum lease payments under the capitalized lease, together with the present value of net minimum lease payments as of December 31, 2021 (in thousands): Year Amount 2022 $ 391 2023 391 2024 391 2025 409 2026 425 2027 and thereafter 2,415 Total minimum lease payments 4,422 Less: amount representing interest (828) Present value of net minimum lease payments $ 3,594 As of December 31, 2021, the Corporation had no finance leases that were signed, but had not yet commenced.

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND INTANGIBLE ASSETS	GOODWILL AND INTANGIBLE ASSETS The changes in goodwill included in the core banking segment during the years ended December 31, 2021 and 2020 were as follows (in thousands): 2021 2020 Beginning of year $ 21,824 $ 21,824 Acquired goodwill — — End of year $ 21,824 $ 21,824 Acquired intangible assets were as follows at December 31, 2021 and 2020 (in thousands): At December 31, 2021 At December 31, 2020 Balance Acquired Accumulated Amortization Balance Acquired Accumulated Amortization Core deposit intangibles $ 5,975 $ 5,974 $ 5,975 $ 5,962 Other customer relationship intangibles 5,633 5,619 5,633 5,388 Total $ 11,608 $ 11,593 $ 11,608 $ 11,350 Aggregate amortization expense was $0.2 million and $0.5 million for 2021 and 2020, respectively. The remaining estimated aggregate amortization expense at December 31, 2021 is listed below (in thousands): Year Estimated Expense 2022 $ 15 Total $ 15

DEPOSITS

DEPOSITS	12 Months Ended
	Dec. 31, 2021
Deposits [Abstract]
DEPOSITS	DEPOSITS A summary of deposits at December 31, 2021 and 2020 is as follows (in thousands): 2021 2020 Non-interest-bearing demand deposits $ 739,607 $ 620,423 Interest-bearing demand deposits 284,721 282,172 Insured money market accounts 654,553 603,583 Savings deposits 280,195 245,865 Time deposits 196,357 285,731 Total $ 2,155,433 $ 2,037,774 Scheduled maturities of time deposits at December 31, 2021, are summarized as follows (in thousands): Year Maturities 2022 $ 165,290 2023 16,067 2024 10,695 2025 876 2026 226 2027 3,203 Total $ 196,357 Time deposits that meet or exceed the FDIC Insurance limit of $250 thousand at December 31, 2021 and 2020 were $28.8 million and $31.2 million, respectively.

FEDERAL HOME LOAN BANK TERM ADV

FEDERAL HOME LOAN BANK TERM ADVANCES AND OVERNIGHT ADVANCES	12 Months Ended
	Dec. 31, 2021
Advances from Federal Home Loan Banks [Abstract]
FEDERAL HOME LOAN BANK TERM ADVANCES AND OVERNIGHT ADVANCES	FEDERAL HOME LOAN BANK TERM ADVANCES AND OVERNIGHT ADVANCES As of December 31, 2021, FHLBNY fixed rate term advances and overnight advances totaled $14.6 million. There were no FHLBNY fixed rate term advances and overnight advances as of December 31, 2020. The following is a summary of FHLBNY fixed rate term advances and overnight advances as of December 31, 2021. The carrying amount includes the advance balance plus purchase accounting adjustments that are amortized over the term of the advance (in thousands): 2021 Amount Rate Maturity Date Call Date $ 14,570 0.34 % January 3, 2022 - $ 14,570 0.34 % The Bank has pledged $204.2 million and $101.9 million of first mortgage loans under a blanket lien arrangement at December 31, 2021 and 2020, respectively, as collateral for future borrowings. Based on this collateral and additional securities held, the Bank's unused borrowing capacity at the FHLBNY was $161.0 million at December 31, 2021.

REVENUE FROM CONTRACTS WITH CUS

REVENUE FROM CONTRACTS WITH CUSTOMERS	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
REVENUE FROM CONTRACTS WITH CUSTOMERS	REVENUE FROM CONTRACTS WITH CUSTOMERS All of the Corporation's revenue from contracts with customers in the scope of ASC 606 is recognized within non-interest income. The following tables present the Corporation's non-interest income by revenue stream and reportable segment for the years ended December 31, 2021 and 2020 (in thousands). Items outside the scope of ASC 606 are noted as such. Year ended December 31, 2021 Revenue by Operating Segment: Core Banking WMG Holding Company, CFS, and CRM (b) Total Non-interest income Service charges on deposit accounts Overdraft fees $ 2,266 $ — $ — $ 2,266 Other 948 — — 948 Interchange revenue from debit card transactions 4,844 — — 4,844 WMG fee income — 11,072 — 11,072 CFS fee and commission income — — 1,043 1,043 Net gains (losses) on sales of OREO (16) — — (16) Net gains on sales of loans (a) 1,073 — — 1,073 Loan servicing fees (a) 148 — — 148 Change in fair value of equity securities (a) 161 — 85 246 Income from bank-owned life insurance (a) 52 — 52 Other (a) 2,264 — (70) 2,194 Total non-interest income $ 11,740 $ 11,072 $ 1,058 $ 23,870 (a) Not within scope of ASC 606. (b) The Holding Company, CFS, and CRM column above includes amounts to eliminate transactions between segments. Year ended December 31, 2020 Revenue by Operating Segment: Core Banking WMG Holding Company, CFS, and CRM (b) Total Non-interest income Service charges on deposit accounts Overdraft fees $ 2,304 $ — $ — $ 2,304 Other 830 — — 830 Interchange revenue from debit card transactions 4,068 — — 4,068 WMG fee income — 9,492 — 9,492 CFS fee and commission income — — 657 657 Net gains (losses) on sales of OREO (79) — — (79) Net gains on sales of loans (a) 1,730 — — 1,730 Loan servicing fees (a) 121 — — 121 Change in fair value of equity securities (a) 139 — (50) 89 Income from bank-owned life insurance (a) 161 — — 161 Other (a) 1,708 — 43 1,751 Total non-interest income $ 10,982 $ 9,492 $ 650 $ 21,124 (a) Not within scope of ASC 606. (b) The Holding Company, CFS, and CRM column above includes amounts to eliminate transactions between segments. A description of the Corporation's revenue streams accounted for under ASC 606 follows: Service Charges on Deposit Accounts: The Corporation earns fees from its deposit customers for transaction-based, account maintenance, and overdraft services. Transaction-based fees, which included services such as ATM use fees, stop payment charges, statement rendering, and ACH fees, are recognized at the time the transaction is executed as that is the point in time the Corporation fulfills the customer's request. Account maintenance fees, which relate primarily to monthly maintenance, are recognized at the time the maintenance occurs. Overdraft fees are recognized at the point in time that the overdraft occurs. Service charges on deposits are withdrawn from the customer's account balance. Interchange Income from Debit Card Transactions: The Corporation earns interchange fees from debit cardholder transactions conducted through the Mastercard payment network. Interchange fees from cardholder transactions represent a percentage of the underlying transaction value and are recognized daily, concurrently with the transaction processing services provided to cardholder. WMG Fee Income (Gross): The Corporation earns wealth management fees from its contracts with trust customers to manage assets for investment, and/or to conduct transactions on their accounts. These fees are primarily earned over time as the Corporation provides the contracted monthly or quarterly services and are generally assessed based on a tiered scale of the market value of assets under management (AUM) at quarter-end. CFS Fee and Commission Income (Net): The Corporation earns fees from investment brokerage services provided to its customers by a third-party service provider. The Corporation receives commissions from the third-party service provider on a monthly basis based upon customer activity for the month. The Corporation (i) acts as an agent in arranging the relationship between the customer and the third-party service provider and (ii) does not control the services rendered to the customers. Investment brokerage fees are presented net of related costs. The Corporation also earns fees from tax services provided to its customers.

DERIVATIVES

DERIVATIVES	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVES	DERIVATIVES As part of the Corporation's product offerings, the Corporation acts as an interest rate swap counterparty for certain commercial borrowers in the normal course of servicing our customers. The interest rate swap agreements are free-standing derivatives and are recorded at fair value in the Corporation's consolidated balance sheets. The Corporation manages its exposure to such interest rate swaps by entering into corresponding and offsetting interest rate swaps with third parties that mirror the terms of the interest rate swaps it has with the commercial borrowers. These positions directly offset each other and the Corporation's exposure is the fair value of the derivatives due to potential changes in credit risk of our commercial borrowers and third parties. The Corporation also enters into risk participation agreements with dealer banks on commercial loans in which it participates. The Corporation receives an upfront fee for participating in the credit exposure of the interest rate swap associated with the commercial loan in which it is a participant and the fee received is recognized immediately in other non-interest income. The Corporation is exposed to its share of the credit loss equal to the fair value of the interest rate swap in the event of nonperformance by the counterparty of the interest rate swap. The Corporation determines the fair value of the credit loss exposure using an estimated credit default rate based on the historical performance of similar assets. The notional amount of the interest rate swaps does not represent amounts exchanged by the parties. The amount exchanged is determined by reference to the notional amount and the other terms of the individual interest rate swap agreements. At December 31, 2021, the Corporation held derivatives not designated as hedging instruments with a total notional amount of $490.0 million. Derivatives not designated as hedging instruments included back-to-back interest rate swaps of $471.5 million, consisting of $235.7 million of interest rate swaps with commercial borrowers and an additional $235.7 million of offsetting interest rate swaps with third-party counter-parties on substantially the same terms, and risk participation agreements with dealer banks of $18.6 million. Free-standing derivatives are not designated as hedges for accounting purposes and are therefore recorded at fair value with changes in fair value recorded in other non-interest income. The following table presents information regarding our derivative financial instruments, at December 31: 2021 Number of Instruments Notional Amount Weighted Average Maturity Weighted Average Interest Rate Received Weighted Average Contract Pay Rate Fair Value Other Assets/ (Other Liabilities) Derivatives not designated as hedging instruments: Interest rate swap agreements on loans with commercial loan customers 35 $ 235,730 7.7 3.83 % 2.14 % $ (9,711) Interest rate swap agreements with third-party counter-parties 35 235,730 7.7 2.14 % 3.83 % 9,498 Risk participation agreements 4 18,552 2.2 (15) Total 74 $ 490,012 $ (228) 2020 Number of Instruments Notional Amount Weighted Average Maturity Weighted Average Interest Rate Received Weighted Average Contract Pay Rate Fair Value Other Assets/ (Other Liabilities) Derivatives not designated as hedging instruments: Interest rate swap agreements on loans with commercial loan customers 26 $ 179,085 7.7 3.95 % 2.20 % $ (15,024) Interest rate swap agreements with third-party counter-parties 26 179,085 7.7 2.20 % 3.95 % 14,702 Risk participation agreements 4 18,840 2.8 (35) 56 $ 377,010 $ (357) Off-balance sheet exposure for the risk participation agreements was $0.5 million and $0.4 million for December 31, 2021 and December 31, 2020, respectively. Amounts included in the Consolidated Statements of Income related to derivatives not designated as hedging were as follows: Years Ended December 31, 2021 2020 Derivatives not designated as hedging instruments: Interest rate swap agreements with commercial loan customers: Unrealized (loss) recognized in non-interest income $ 5,313 $ (8,224) Interest rate swap agreements with third-party counter-parties: Unrealized gain recognized in non-interest income (5,204) 8,236 Risk participation agreements: Unrealized gain (loss) recognized in non-interest income 20 (4) Unrealized gain (loss) recognized in non-interest income $ 129 $ 8

INCOME TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES For the years ended December 31, 2021 and 2020, income tax expense attributable to income from operations consisted of the following (in thousands): 2021 2020 Current expense: Federal $ 5,732 $ 4,413 State 1,033 280 Total current 6,765 4,693 Deferred expense/(benefit): Federal 527 (136) State 43 50 Total deferred 570 (86) Income tax expense $ 7,335 $ 4,607 Income tax expense differed from the amounts computed by applying the U.S. Federal statutory income tax rate to income before income tax expense as follows (in thousands): 2021 2020 Statutory federal tax rate 21 % 21 % Tax computed at statutory rate $ 7,090 $ 5,013 Increase (reduction) resulting from: Tax-exempt income (380) (395) 831(b) premium adjustment (291) (296) Dividend exclusion (8) (5) State taxes, net of Federal impact 803 118 Nondeductible interest expense 4 5 Other items, net 117 167 Income tax expense $ 7,335 $ 4,607 Effective tax rate 21.7 % 19.3 % The higher tax expense in 2021 when compared to 2020 can be attributed to an increase in pretax income. The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2021 and 2020, are presented below (in thousands): 2021 2020 Deferred tax assets: Allowance for loan losses $ 5,546 $ 5,393 Accrual for employee benefit plans — 47 Depreciation 979 681 Deferred compensation and directors' fees 1,130 1,045 Operating lease liabilities 1,976 1,831 Purchase accounting adjustment – loans — 1 Purchase accounting adjustment – fixed assets 153 149 Gain on deemed sale of securities — 54 Net unrealized losses on securities available for sale 886 — Accounting for defined benefit pension and other benefit plans 1,347 2,302 Nonaccrued interest 473 687 Accrued expense 139 158 Other items, net 127 48 Total gross deferred tax assets 12,756 12,396 Deferred tax liabilities: Deferred loan fees and costs 355 274 Prepaid pension 3,715 3,344 Net unrealized gains on securities available for sale — 3,124 Discount accretion 78 50 Core deposit intangible 1,556 1,353 REIT dividend 608 616 Operating lease right-of-use assets 1,976 1,831 Accrual for employee benefit plans 3 — Other 344 168 Total gross deferred tax liabilities 8,635 10,760 Net deferred tax asset $ 4,121 $ 1,636 Realization of deferred tax assets is dependent upon the generation of future taxable income. A valuation allowance is recognized when it is more likely than not that some portion of the deferred tax assets will not be realized. In assessing the need for a valuation allowance, management considers the scheduled reversal of the deferred tax assets, the level of historical taxable income and projected future taxable income over the periods in which the temporary differences comprising the deferred tax assets will be deductible. Based on its assessment, management determined that no valuation allowance is necessary. As of December 31, 2021 and 2020, the Corporation did not have any unrecognized tax benefits. The Corporation accounts for interest and penalties related to uncertain tax positions as part of its provision for Federal and State income taxes. As of December 31, 2021 and 2020, the Corporation did not accrue any interest or penalties related to its uncertain tax positions. The Corporation is not currently subject to examinations by Federal taxing authorities for the years prior to 2018 and for New York State taxing authorities for the year prior to 2018. New York State taxing authorities are currently auditing the Corporation with the years 2018, 2019, and 2020. The Corporation does not anticipate material adjustments as a result of the New York State audits.

PENSION PLAN AND OTHER BENEFIT

PENSION PLAN AND OTHER BENEFIT PLANS	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
PENSION PLAN AND OTHER BENEFIT PLANS	PENSION PLAN AND OTHER BENEFIT PLANS Pension Plan The Corporation has a noncontributory defined benefit pension plan covering a majority of employees. The plan's defined benefit formula generally based payments to retired employees upon their length of service multiplied by a percentage of the average monthly pay over the last five years of employment. New employees hired on or after the July 10, 2010 were not eligible to participate in the plan, however, existing participants at that time continued to accrue benefits. 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. The Corporation uses a December 31 measurement date for its pension plan. The following table presents (1) changes in the plan's projected benefit obligation and plan assets, and (2) the plan's funded status at December 31, 2021 and 2020 (in thousands): Change in projected benefit obligation: 2021 2020 Benefit obligation at beginning of year $ 42,781 $ 39,886 Service cost — — Interest cost 1,084 1,300 Actuarial (gain) loss (1,300) 3,735 Curtailments — — Settlements — — Benefits paid (2,161) (2,140) Benefit obligation at end of year $ 40,404 $ 42,781 Change in plan assets: 2021 2020 Fair value of plan assets at beginning of year $ 50,134 $ 45,557 Actual return on plan assets 5,014 6,717 Employer contributions — — Settlements — — Benefits paid (2,161) (2,140) Fair value of plan assets at end of year $ 52,987 $ 50,134 Funded status $ 12,583 $ 7,353 Amount recognized in accumulated other comprehensive income (loss) at December 31, 2021 and 2020 consist of the following (in thousands): 2021 2020 Net actuarial loss $ 4,833 $ 8,602 Prior service cost — — Total before tax effects $ 4,833 $ 8,602 The accumulated benefit obligation at December 31, 2021 and 2020 was $40.4 million and $42.8 million, respectively. Actuarial gains in the Projected Benefit Obligation (PBO) in 2021 were primarily the result of the increase in discount rate. The increase in discount rate caused the PBO to decrease by $1.3 million. Other sources of gain/loss such as plan experience, updated census data and minor adjustments to actuarial assumptions generated a combined loss of less than 1% of expected year end obligations. The principal actuarial assumptions used in determining the projected benefit obligation as of December 31, 2021 and 2020 were as follows: 2021 2020 Discount rate 2.87 % 2.61 % Assumed rate of future compensation increase N/A N/A Weighted-average interest crediting rate N/A N/A Components of net periodic benefit cost and other amounts recognized in other comprehensive income (loss) in 2021 and 2020 consist of the following (in thousands): Net periodic benefit cost 2021 2020 Service cost, benefits earned during the year $ — $ — Interest cost on projected benefit obligation 1,084 1,300 Expected return on plan assets (2,696) (2,444) Amortization of net loss 151 213 Amortization of prior service cost — — Recognized (gain) loss due to settlements — — Net periodic cost (benefit) $ (1,461) $ (931) Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss): 2021 2020 Net actuarial (gain) loss $ (3,618) $ (538) Recognized loss (151) (213) Amortization of prior service cost — — Total recognized in other comprehensive income (loss) (before tax effect) $ (3,769) $ (751) Total recognized in net (benefit) cost and other comprehensive income (loss) (before tax effect) $ (5,230) $ (1,682) During 2021, the plan's total unrecognized net loss decreased by $3.8 million. The variance between the actual and expected return on plan assets during 2021 decreased the total unrecognized net loss by $2.3 million. Because the total unrecognized net gain or loss in the plan exceeds 10% of the projected benefit obligation or 10% of the plan assets, and the plan is frozen, the excess will be amortized over the average future life expectancy of all plan participants. Prior to the plan freeze on December 31, 2016, the excess had been amortized over the average future working lifetime of all plan participants. As of January 1, 2021, the average expected future life expectancy of all participants which was 23.07 years. Actual results for 2022 will depend on the 2022 actuarial valuation of the plan. The principal actuarial assumptions used in determining the net periodic benefit cost for the years ended December 31, 2021, 2020 were as follows: 2021 2020 Discount rate 2.61 % 3.33 % Expected return on assets 5.50 % 5.50 % Assumed rate of future compensation increase N/A N/A Weighted-average interest crediting rate N/A N/A The Corporation changes important assumptions whenever changing conditions warrant. At December 31, 2021 the Corporation used IRS Static 2022 Mortality Table with Mortality Improvement Scale MP-2020 as a basis for the Plan's valuation. At December 31, 2020, the Corporation used IRS Static 2021 Mortality Table with Mortality Improvement Scale MP-2019 as a basis for the Plan's valuation. The discount rate is evaluated at least annually and the expected long-term return on plan assets will typically be revised every three The Corporation's overall investment strategy is to achieve a mix of investments for long-term growth and for near-term benefit payments with a wide diversification of asset types. The target allocations for plan assets are shown in the table below. Equity securities primarily include investments in common or preferred shares of both U.S. and international companies. Debt securities include U.S. Treasury and Government bonds as well as U.S. Corporate bonds. Other investments may consist of mutual funds, money market funds and cash & cash equivalents. While no significant changes in the asset allocations are expected during 2022, the Corporation may make changes at any time. The expected return on plan assets was determined based on a CAPM using historical and expected future returns of the various asset classes, reflecting the target allocations described below. Asset Class Target Allocation 2021 Percentage of Plan Assets at December 31, Expected Long-Term Rate of Return 2021 2020 Large cap domestic equities 20% - 50% 42 % 43 % 10.1 % Mid-cap domestic equities 0% - 15% — % 2 % 10.5 % Small-cap domestic equities 0% - 10% 5 % 3 % 9.0 % International equities 0% - 20% 4 % 3 % 11.1 % Intermediate fixed income 30% - 70% 45 % 45 % 4.2 % Alternative assets 0% - 10% — % — % — % Cash 0% - 20% 4 % 4 % 1.1 % Total 100 % 100 % The investment policy of the plan is to provide for long-term growth of principal and income without undue exposure to risk. The focus is on long-term capital appreciation and income generation. The Corporation maintains an IPS that guides the investment allocation in the plan. The IPS describes the target asset allocation positions as shown in the table above. The Corporation has appointed an Employee Pension and Profit Sharing Committee to manage the general philosophy, objectives and process of the plan. The Employee Pension and Profit Sharing Committee meets with the Investment Manager periodically to review the plan's performance and to ensure that the current investment allocation is within the guidelines set forth in the IPS. Only the Employee Pension and Profit Sharing Committee, in consultation with the Investment Manager, can make adjustments to maintain target ranges and for any permanent changes to the IPS. Quarterly, the Board of Directors' Trust and Employee Benefits Committee reviews the performance of the plan with the Investment Manager. As of December 31, 2021 and 2020, the Corporation's pension plan did not hold any direct investment in the Corporation's common stock. The Corporation used the following methods and significant assumptions to estimate the fair value of each type of financial instrument held by the pension plan: Fair value is the exchange price that would be received for an asset in the principal or most advantageous market for the asset in an orderly transaction between market participants on the measurement date. The fair value hierarchy described below requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The fair values for investment securities are determined by quoted market prices, if available (Level 1). For securities where quoted prices are not available, fair values are calculated based on market prices of similar securities (Level 2). For securities where quoted prices or market prices of similar securities are not available, fair values are calculated using discounted cash flows or other market indicators (Level 3). Discounted cash flows are calculated using spread and optionality. During times when trading is more liquid, broker quotes are used (if available) to validate the model. Rating agency and industry research reports as well as defaults and deferrals on individual securities are reviewed and incorporated into the calculations. The fair value of the plan assets at December 31, 2021 and 2020, by asset class are as follows (in thousands): Fair Value Measurement atDecember 31, 2021 Using Plan Assets Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Cash $ 2,270 $ 2,270 $ — $ — Equity securities: U.S. companies 21,927 21,927 — — Mutual funds 26,345 26,345 — — Debt securities: U.S. Treasuries/Government bonds 2,181 2,181 — — U.S. Corporate bonds 264 264 — — Total plan assets $ 52,987 $ 52,987 $ — $ — Fair Value Measurement atDecember 31, 2020 Using Plan Assets Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Cash $ 2,047 $ 2,047 $ — $ — Equity securities: U.S. companies 21,716 21,716 — — Mutual funds 23,778 23,778 — — Debt securities: U.S. Treasuries/Government bonds 2,318 2,318 — — U.S. Corporate bonds 275 275 — — Total plan assets $ 50,134 $ 50,134 $ — $ — The following table presents the estimated benefit payments for each of the next five years and the aggregate amount expected to be paid in years six through ten for the pension plan (in thousands): Calendar Year Future Expected Benefit Payments 2022 $ 2,295 2023 $ 2,329 2024 $ 2,336 2025 $ 2,328 2026 $ 2,326 2027-2031 $ 11,344 The Corporation does not expect to contribute to the plan during 2022. Funding requirements for subsequent years are uncertain and will significantly depend on changes in assumptions used to calculate plan funding levels, the actual return on plan assets, changes in the employee groups covered by the plan, and any legislative or regulatory changes affecting plan funding requirements. For tax planning, financial planning, cash flow management or cost reduction purposes the Corporation may increase, accelerate, decrease or delay contributions to the plan to the extent permitted by law. Defined Contribution Profit Sharing, Savings and Investment Plan On October 20, 2016, the Bank amended its defined contribution profit sharing, savings, and investment plan for all active participants to supersede the current contribution formula used by the Plan, which included eliminating the 1000 hours of service requirement to participate in employer contributions. Beginning on January 1, 2017, the Bank began contributing a non-discretionary 3% of gross annual wages for each participant, regardless of the participant’s deferral, and eliminated discretionary contributions for participants hired prior to July 1, 2010. Additionally, beginning January 1, 2017 the Bank began contributing a 50% match up to 6% of gross annual wages. Expense related to both plans totaled $1.3 million for the years ended December 31, 2021 and 2020. The plan's assets at December 31, 2021 and 2020 include 118,081 and 137,698 shares, respectively, 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. Defined Benefit Health Care Plan 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 defined benefit health care plan disclosures as of December 31, 2017. The Corporation uses a December 31 measurement date for its defined benefit health care plan. The following table presents (1) changes in the plan's accumulated postretirement benefit obligation and (2) the plan's funded status at December 31, 2021 and 2020 (in thousands): Changes in accumulated postretirement benefit obligation: 2021 2020 Accumulated postretirement benefit obligation - beginning of year $ 249 $ 332 Service cost — — Interest cost 6 9 Participant contributions 20 35 Amendments — — Actuarial (gain) loss (37) (57) Benefits paid (44) (70) Accumulated postretirement benefit obligation at end of year $ 194 $ 249 Change in plan assets: 2021 2020 Fair value of plan assets at beginning of year $ — $ — Employer contribution 24 35 Plan participants’ contributions 20 35 Benefits paid (44) (70) Fair value of plan assets at end of year $ — $ — Unfunded status $ (194) $ (249) Amount recognized in accumulated other comprehensive income (loss) at December 31, 2021 and 2020 consist of the following (in thousands): 2021 2020 Net actuarial loss $ 208 $ 286 Prior service credit — (220) Total before tax effects $ 208 $ 66 Weighted-average assumption for disclosure as of December 31: 2021 2020 Discount rate 2.87% 2.61% Assumed rate of future compensation increase N/A N/A Health care cost trend: Initial (Pre-65/Post 65) 6.95% / 5.45% 6.95% / 5.45% Health care cost trend: Ultimate (Pre-65/Post 65) 4.75% / 4.75% 4.75% / 4.75% Year ultimate cost trend reached 2027 2026 The components of net periodic postretirement benefit cost for the years ended December 31, 2021 and 2020 are as follows (in thousands): Net periodic cost (benefit) 2021 2020 Service cost $ — $ — Interest cost 6 9 Expected return on plan assets — — Amortization of prior service benefit (220) (220) Recognized actuarial loss 42 74 Recognized prior service benefit due to curtailments — — Net periodic postretirement cost (benefit) $ (172) $ (137) Other changes in plan assets and benefit obligations 2021 2020 Net actuarial (gain) loss $ (37) $ (57) Recognized actuarial loss (42) (74) Prior service credit — — Amortization of prior service benefit 220 220 Total recognized in other comprehensive income (loss)(before tax effect) $ 141 $ 89 Total recognized in net benefit cost and other comprehensive income (loss) (before tax effect) $ (31) $ (48) Actuarial gain for 2021 is primarily the net impact of an increase in discount rate, which decreased the Accumulated Postretirement Benefit Obligation (APBO) by $4 thousand and claims and date experience, which (combined) decreased the APBO by $31 thousand. During 2021 the plan's total unrecognized net loss decreased by $79 thousand. Because the total unrecognized net gain or loss in the plan exceeds 10% of the accumulated postretirement benefit obligation, the excess will be amortized over the average future life expectancy of all plan participants. As of January 1, 2021, the average future life expectancy of all plan participants was 6.0 years. Previous to the plan freeze as of December 31, 2016, the amortization period was based upon average future working lifetime of active employees. Actual results for 2022 will depend on the 2022 actuarial valuation of the plan. The change in unrecognized gain/loss is one measure of the degree to which important assumptions have coincided with actual experience. During 2021, the unrecognized net loss decreased by 31% of the December 31, 2020 accumulated postretirement benefit obligation. The Corporation changes important assumptions whenever changing conditions warrant. The discount rate and per capita costs are typically changed at least annually. Other material assumptions include rates of participant mortality and rates of increase in medical costs. Weighted-average assumptions for net periodic cost as of December 31: 2021 2020 Discount rate 2.61% 3.33% Expected return on plan assets N/A N/A Assumed rate of future compensation increase N/A N/A Health care cost trend: Initial 6.95% / 5.45% 6.95% / 5.45% Health care cost tread: Ultimate 4.75% / 4.75% 4.75% / 4.75% Year ultimate reached 2026 2025 The following table presents the estimated benefit payments for each of the next five years and the aggregate amount expected to be paid in years six through ten (in thousands): Calendar Year Future Estimated Benefit Payments 2022 $ 33 2023 $ 35 2024 $ 19 2025 $ 18 2026 $ 17 2026-2030 $ 64 The Corporation’s policy is to contribute the amount required to fund postretirement benefits as they become due to retirees. The amount expected to be required in contributions to the plan during 2022 is $33 thousand. Executive Supplemental Pension Plan The Corporation also sponsors an Executive Supplemental Pension Plan for certain former executive officers to restore certain pension benefits that may be reduced due to limitations under the Internal Revenue Code. The benefits under this plan are unfunded as of December 31, 2021 and 2020. The Corporation uses a December 31 measurement date for its Executive Supplemental Pension Plan. The following table presents Executive Supplemental Pension plan status at December 31, 2021 and 2020 (in thousands): Change in projected benefit obligation: 2021 2020 Benefit obligation at beginning of year $ 1,251 $ 1,232 Service cost — — Interest cost 31 39 Actuarial (gain) loss — 89 Benefits paid (109) (109) Projected benefit obligation at end of year $ 1,173 $ 1,251 Changes in plan assets: 2021 2020 Fair value of plan assets at beginning of year $ — $ — Employer contributions 109 109 Benefits paid (109) (109) Fair value of plan assets at end of year $ — $ — Unfunded status $ (1,173) $ (1,251) Amounts recognized in accumulated other comprehensive income (loss) at December 31, 2021 and 2020 consist of the following (in thousands): 2021 2020 Net actuarial loss $ 339 $ 359 Prior service cost — — Total before tax effects $ 339 $ 359 Accumulated benefit obligation at December 31, 2021 and 2020 was $1.2 million and $1.3 million, respectively. Weighted-average assumption for disclosure as of December 31: 2021 2020 Discount rate 2.87 % 2.61 % Assumed rate of future compensation increase N/A N/A Weighted-average interest crediting rate N/A N/A The components of net periodic benefit cost for the years ended December 31, 2021 and 2020 are as follows (in thousands): Net periodic benefit cost 2021 2020 Service cost $ — $ — Interest cost 31 39 Recognized actuarial loss 19 13 Net periodic postretirement benefit cost $ 50 $ 52 Other changes in plan assets and benefit obligation recognized in other comprehensive income (loss): 2021 2020 Net actuarial (gain) loss $ — $ 89 Recognized actuarial loss (19) (13) Total recognized in other comprehensive income (loss) (before tax effect) $ (19) $ 76 Total recognized in net benefit cost and other comprehensive income (loss) (before tax effect) $ 31 $ 128 During 2021, there was a $24 thousand gain in the projected benefit obligation as a result of the increase in discount rate. Offsetting this was a mortality loss of $26 thousand. Other sources of gains/losses, including the update in mortality table, generated losses of less than 1% of expected year end obligations. During 2021, the plan's total unrecognized net loss decreased by $20 thousand. Because the total unrecognized net gain or loss exceeds the greater of 10% of the projected benefit obligation or 10% of the plan assets, the excess will be amortized over the average future life expectancy of all participants. Previously, the excess had been amortized over the average future working lifetime of active participants, however, there are no longer any active participants in the plan as of January 1, 2017, so the amortization period was changed to be the average future life expectancy of all plan participants. As of January 1, 2022, the average future life expectancy of plan participants was 11.39 years. Weighted-average assumptions for net periodic cost as of December 31: 2021 2020 Discount rate 2.61 % 3.33 % Expected asset return N/A N/A Assumed rate of future compensation increase N/A N/A Weighted-average interest crediting rate N/A N/A The discount rate was determined by projecting the plan's expected future benefit payments as defined for the projected benefit obligation, discounting those expected payments using a theoretical zero-coupon spot yield curve derived from a universe of high-quality bonds as of the measurement date, and solving for the single equivalent discount rate that resulted in the same projected benefit obligation. The change in unrecognized net gain.loss is one measure of the degree to which important assumptions have coincided with actual experience. During 2021 the unrecognized net loss decreased by 1.6% of the December 31, 2020 projected benefit obligation. The following table presents the estimated benefit payments for each of the next five years and the aggregate amount expected to be paid in years six through ten for the Supplemental Pension Plan (in thousands): Calendar Year Future Estimated Benefit Payments 2022 $ 108 2023 $ 106 2024 $ 103 2025 $ 99 2026 $ 95 2027-2031 $ 403 The Corporation expects to contribute $110 thousand to the plan during 2022. Corporation contributions are equal to the benefit payments to plan participants. Funding requirements for subsequent years are uncertain and will significantly depend upon changes in assumptions used to calculate plan funding levels, the actual return on plan assets, changes in the employee groups covered by the plan, and any legislative or regulatory changes affecting plan funding requirements. For tax planning, financial planning, cash flow management or cost reduction purposes, the Corporation may increases, accelerate, decrease or delay contributions to the plan to the extent permitted by law. Defined Contribution Supplemental Executive Retirement Plan The Corporation also sponsors a Defined Contribution Supplemental Executive Retirement Plan for certain current executive officers, which was initiated in 2012. The plan is unfunded as of December 31, 2021 and is intended to provide nonqualified deferred compensation benefits payable at retirement, disability, death or certain other events. The accrued obligation for the plan as of December 31, 2021 and 2020 was $2.4 million and $2.0 million, respectively. A total of $0.4 million was expensed during the years ended December 31, 2021 and 2020. In addition to each participants account being credited with the annual company contribution, each account will receive a quarterly interest credit that will equal the average yield on five year U.S. Treasury Notes.

STOCK COMPENSATION

STOCK COMPENSATION	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
STOCK COMPENSATION	STOCK COMPENSATION On June 8, 2021, the Corporation's shareholders approved the Corporation's 2021 Equity Incentive Plan (the "2021 Plan") which provides for the grant of stock-based awards to officers, employees and directors of the Corporation and the Bank. A Form S-8 Registration Statement was filed with the SEC on June 18, 2021 registering shares to be awarded under the 2021 Plan. The 2021 Plan provides officers, employees and directors of the Corporation and the Bank with additional incentives to promote the growth and performance of the Corporation. The prior plan shall remain in existence solely for the purpose of administering outstanding grants. Under the terms of the 2021 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 2021 Plan, the chief executive officer and members of the Board of Directors. Awards are based on the performance, responsibility and contributions of the individual 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 related to the 2021 Plan may not exceed 170,000, upon which time a new plan will be filed. Awards under the 2021 Plans may be vested no earlier than the first anniversary of the date on which the award is granted. Compensation expense for shares granted will be recognized over the vesting period of the award based upon average closing price of the Corporation's stock for each of the prior 30 trading days ending on the grant date. During January 2022 and 2021, 9,190 and 9,291 shares, respectively, were granted and re-issued from treasury to fund the stock component of the Directors' and the Chief Executive Officer’s compensation. For 2022 grants, the expense related to this compensation will be recognized over the one year vesting period. An expense of $318 thousand related to this compensation was recognized during the year ended December 31, 2020 as this expense was accrued as shares were earned. A summary of restricted stock activity as of December 31, 2021, and changes during the year ended is presented below: Shares Weighted–Average Grant Date Fair Value Nonvested at December 31, 2020 31,830 $ 40.32 Granted 20,763 46.36 Vested (14,756) 41.98 Forfeited or Cancelled — — Nonvested at December 31, 2021 37,837 $ 42.99 As of December 31, 2021, there was $1.5 million of total unrecognized compensation cost related to nonvested shares granted under the prior Plan and the 2021 Plan. The cost is expected to be recognized over a weighted-average period of 4.23 years. The total fair value of shares vested during the years ended December 31, 2021 and 2020 were $620 thousand and $556 thousand, respectively.

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2021
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONS Members of the Board of Directors, certain Corporation officers, and their immediate families directly, or through entities in which they are principal owners (more than 10% interest) or board members, were customers of, and had loans and other transactions with the Corporation. These loans are summarized as follows for the years ended December 31, 2021 and 2020 (in thousands): 2021 2020 Balance at beginning of year $ 56,052 $ 59,973 New loans or additional advances 2,642 7,461 Effect of changes in composition of related parties (122) — Repayments (7,380) (11,382) Balance at end of year $ 51,192 $ 56,052 Deposits from principal officers, directors, and their affiliates at December 31, 2021 and 2020 were $46.7 million and $39.5 million, respectively. The Bank leases its branch located at 1365 New Scotland Road, Slingerlands, New York, under a lease agreement through July 2022 from a member of the Corporation's Board of Directors with monthly rent expense totaling $4 thousand per month. Annual rent paid to this Board of Directors member totaled $50 thousand and $51 thousand for the years ended December 31, 2021 and 2020, respectively. The Bank entered into a lease agreement in 2018 related to its branch located at 2 Rush Street, Schenectady, New York, under a lease agreement through February 2033 from a member of the Corporation's Board of Directors with monthly rent expense totaling $8 thousand per month. Rent paid to this Board of Directors member totaled $101 thousand and $106 thousand for the years ended December 2021 and 2020, respectively. WMG provided trust services to members of the Board of Directors, certain Corporation officers, and their immediate families directly, or through entities in which they are principal owners or board members. WMG fee income for the trust services provided totaled $726 thousand and $614 thousand for the years ended December 31, 2021 and 2020, respectively.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Some financial instruments, such as loan commitments, credit lines, letters of credit, and overdraft protection, are issued to meet customer financing needs. These are agreements to provide credit or to support the credit of others, as long as conditions established in the contract are met, and usually have expiration dates. Commitments may expire without being used. Off-balance sheet risk to credit loss exists up to the face amount of these instruments, although material losses are not anticipated. The same credit policies are used to make such commitments as are used for loans, including obtaining collateral at exercise of the commitment. The contractual amounts of financial instruments with off-balance sheet risk at year-end were as follows (in thousands): 2021 2020 Fixed Rate Variable Rate Fixed Rate Variable Rate Commitments to make loans $ 20,772 $ 46,558 $ 28,459 $ 39,056 Unused lines of credit $ 4,745 $ 288,368 $ 1,300 $ 268,075 Standby letters of credit $ — $ 7,974 $ — $ 16,094 Commitments to make real estate and home equity loans are generally made for periods of sixty days or less. As of December 31, 2021, the fixed rate real estate and home equity commitments to make loans have interest rates ranging from 2.63% to 5.50% and maturities ranging from three years to thirty years. Commitments to fund commercial draw notes are generally made for periods of three months to twenty-four months. As of December 31, 2021, the fixed rate commercial draw commitments have interest rates ranging from 1.00% to 7.38%. Because many commitments and almost all standby letters of credit expire without being funded in whole or in part, the contract amounts are not estimates of future cash flows. Loan commitments and unused lines of credit have off-balance sheet credit risk because only origination fees are recognized on the consolidated balance sheet until commitments are fulfilled or expire. The credit risk amounts are equal to the contractual amounts, assuming the amounts are fully advanced and collateral or other security is of no value. The Corporation does not anticipate losses as a result of these transactions. These commitments also have off-balance sheet interest rate risk in that the interest rate at which these commitments were made may not be at market rates on the date the commitments are fulfilled. The Corporation has issued conditional commitments in the form of standby letters of credit to guarantee payment on behalf of a customer and guarantee the performance of a customer to a third party. Standby letters of credit generally arise in connection with lending relationships. The credit risk involved in issuing these instruments is essentially the same as that involved in extending loans to customers. Contingent obligations under standby letters of credit totaled $8.0 million at December 31, 2021 and represent the maximum potential future payments the Corporation could be required to make. Typically, these instruments have terms of twelve months or less and expire unused; therefore, the total amounts do not necessarily represent future cash requirements. Each customer is evaluated individually for creditworthiness under the same underwriting standards used for commitments to extend credit and on-balance sheet instruments. Corporation policies governing loan collateral apply to standby letters of credit at the time of credit extension. The carrying amount and fair value of the Corporation's standby letters of credit at December 31, 2021 was not significant. In the normal course of business, there are various outstanding claims and legal proceedings involving the Corporation or its subsidiaries. The Corporation believes that it is not a party to any pending legal, arbitration, or regulatory proceedings that could have a material adverse impact on its financial results or liquidity.

PARENT COMPANY FINANCIAL INFORM

PARENT COMPANY FINANCIAL INFORMATION	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
PARENT COMPANY FINANCIAL INFORMATION	PARENT COMPANY FINANCIAL INFORMATION Condensed parent company only financial statement information of Chemung Financial Corporation is as follows (investment in subsidiaries is recorded using the equity method of accounting) (in thousands): BALANCE SHEETS - DECEMBER 31 2021 2020 Assets: Cash on deposit with subsidiary bank $ 2,473 $ 2,243 Investment in subsidiary - Chemung Canal Trust Company 203,373 192,364 Investment in subsidiary - CFS Group, Inc. 1,074 876 Investment in subsidiary - Chemung Risk Management, Inc. 2,661 2,563 Dividends receivable from subsidiary bank 1,450 1,214 Securities available for sale, at estimated fair value 391 377 Other assets 1,517 1,420 Total assets $ 212,939 $ 201,057 Liabilities and shareholders' equity: Dividends payable $ 1,450 $ 1,214 Other liabilities 34 144 Total liabilities 1,484 1,358 Shareholders' equity: Total shareholders' equity 211,455 199,699 Total liabilities and shareholders' equity $ 212,939 $ 201,057 STATEMENTS OF INCOME - YEARS ENDED DECEMBER 31 2021 2020 Dividends from subsidiary bank and non-bank $ 6,854 $ 10,806 Interest and dividend income 4 5 Non-interest income 85 (50) Non-interest expenses 432 503 Income before impact of subsidiaries' undistributed earnings 6,511 10,258 Equity in undistributed earnings of Chemung Canal Trust Company 19,492 8,204 Equity in undistributed earnings of CFS Group, Inc. 198 8 Equity in undistributed earnings of Chemung Risk Management, Inc. 98 610 Income before income tax 26,299 19,080 Income tax benefit (126) (182) Net income $ 26,425 $ 19,262 STATEMENTS OF CASH FLOWS - YEARS ENDED DECEMBER 31 2021 2020 Cash flows from operating activities: Net Income $ 26,425 $ 19,262 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed earnings of Chemung Canal Trust Company (19,492) (8,204) Equity in undistributed earnings of CFS Group, Inc. (198) (8) Equity in undistributed earnings of Chemung Risk Management, Inc. (98) (610) Change in dividend receivable (236) (1,214) Change in other assets (97) (154) Change in other liabilities (252) 8 Expense related to employee stock compensation 132 101 Expense related to restricted stock units for directors' deferred compensation plan 19 29 Expense to employee restricted stock awards 535 672 Net cash provided by operating activities 6,738 9,882 Cash flow from financing activities: Cash dividends paid (5,318) (5,006) Purchase of treasury stock (1,616) (7,589) Sale of treasury stock 426 1,018 Net cash used in financing activities (6,508) (11,577) Increase (decrease) in cash and cash equivalents 230 (1,695) Cash and cash equivalents at beginning of year 2,243 3,938 Cash and cash equivalents at end of year $ 2,473 $ 2,243

FAIR VALUES

FAIR VALUES	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
FAIR VALUES	FAIR VALUES Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There are three levels of inputs that may be used to measure fair value: Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3: Significant unobservable inputs that reflect a reporting entity's own assumptions about the assumptions that market participants would use in pricing an asset or liability. The Corporation used the following methods and significant assumptions to estimate fair value: Available for Sale Securities: The fair values of securities available for sale are usually determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1 inputs), or matrix pricing, which is a mathematical technique widely used to value debt securities without relying exclusively on quoted prices for the specific securities, but rather by relying on the securities' relationship to other benchmark quoted securities (Level 2 inputs). For securities where quoted prices or market prices of similar securities are not available, fair values are calculated using discounted cash flows or other market indicators (Level 3 inputs). Equity Investments: Securities that are held to fund a non-qualified deferred compensation plan and securities that have a readily determinable fair market value, are recorded with changes in fair value included in earnings. The fair values of equity investments are determined by quoted market prices (Level 1 inputs). Impaired Loans : At the time a loan is considered impaired, it is valued at the lower of cost or fair value. Impaired loans carried at fair value have been partially charged-off or receive specific allocations as part of the allowance for loan loss accounting. For collateral dependent loans, fair value is commonly based on real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value. Non-real estate collateral may be valued using an appraisal, net book value per the borrower’s financial statements, or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and management’s expertise and knowledge of the client and client’s business, typically resulting in a Level 3 fair value classification. Impaired loans are evaluated on a quarterly basis for additional impairment and adjusted accordingly. OREO : Assets acquired through or instead of loan foreclosures are initially recorded at fair value less costs to sell when acquired, establishing a new cost basis. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. Fair value is commonly based on recent real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value. Appraisals for both collateral-dependent impaired loans and OREO are performed by certified general appraisers (commercial properties) or certified residential appraisers (residential properties) whose qualifications and licenses have been reviewed and verified by the Corporation. Once received, appraisals are reviewed for reasonableness of assumptions, approaches utilized, Uniform Standards of Professional Appraisal Practice and other regulatory compliance, as well as the overall resulting fair value in comparison with independent data sources such as recent market data or industry-wide statistics. Appraisals are generally completed within the previous 12 month period prior to a property being placed into OREO. On impaired loans, appraisal values are adjusted based on the age of the appraisal, the position of the lien, the type of the property and its condition. Derivatives : The fair values of interest rate swaps are based on valuation models using observable market data as of the measurement date (Level 2 inputs). Derivatives are traded in an over-the-counter market where quoted market prices are not always available. Therefore, the fair values of derivatives are determined using quantitative models that utilize multiple market inputs. The inputs will vary based on the type of derivative, but could include interest rates, prices, and indices to generate continuous yield or pricing curves, prepayment rates, and volatility factors to value the position. The Corporation also incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counter-party's nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Corporation has considered the impact of any applicable credit enhancements, such as collateral postings. Although the Corporation has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with credit risk participations are based on credit default rate assumptions (Level 3 inputs). Assets and liabilities measured at fair value on a recurring basis are summarized below (in thousands): Fair Value Measurement at December 31, 2021 Using Financial Assets: Fair Value Quoted Prices Significant Significant Unobservable Inputs U.S. treasury notes and bonds $ 60,431 $ 60,431 $ — $ — Mortgage-backed securities, residential $ 577,361 $ — $ 577,361 $ — Obligations of states and political subdivisions 42,303 — 42,303 — Corporate bonds and notes 22,848 — 22,848 — SBA loan pools 89,083 — 89,083 — Total available for sale securities $ 792,026 $ 60,431 $ 731,595 $ — Equity Investments $ 2,404 $ 2,404 $ — $ — Derivative assets 9,498 — 9,498 — Financial Liabilities: Derivative liabilities $ 9,726 $ — $ 9,726 $ — Fair Value Measurement at December 31, 2020 Using Financial Assets: Fair Value Quoted Prices Significant Other Observable Inputs Significant Unobservable Inputs Mortgage-backed securities, residential $ 467,866 $ — $ 467,866 $ — Obligations of states and political subdivisions 43,405 — 43,405 — Corporate bonds and notes 9,035 — 9,035 — SBA loan pools 34,305 — 34,305 — Total available for sale securities $ 554,611 $ — $ 554,611 $ — Equity investments $ 1,880 $ 1,880 $ — $ — Derivative assets 14,702 — 14,702 — Financial Liabilities: Derivative liabilities $ 15,059 $ — $ 15,059 $ — There were no transfers between Level 1 and Level 2 during the twelve month periods ending December 31, 2021 and 2020. Assets and liabilities measured at fair value on a non-recurring basis are summarized below (in thousands): Fair Value Measurement at December 31, 2021 Using Financial Assets: Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Total Gains (Losses) Other real estate owned: Residential mortgages 143 — — 143 — Total other real estate owned, net $ 143 $ — $ — $ 143 $ — Fair Value Measurement at December 31, 2020 Using Financial Assets: Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Total Gains (Losses) Other real estate owned: Commercial mortgages: Commercial mortgages $ 111 $ — $ — $ 111 $ — Residential mortgages 126 — — 126 — Total other real estate owned, net $ 237 $ — $ — $ 237 $ — The following table presents information related to Level 3 non-recurring fair value measurement at December 31, 2021 and 2020 (in thousands): Asset Fair Value at December 31, 2021 Valuation Technique Unobservable Inputs Range OREO: Residential mortgages 143 Sales comparison Discount to appraised value 20.80% - 20.80% [20.80%] $ 143 Asset Fair Value at December 31, 2020 Valuation Technique Unobservable Inputs Range OREO: Commercial mortgages: Commercial mortgages $ 111 Sales comparison Discount to appraised value 20.80% - 20.80% [20.80%] Residential mortgages 126 Sales comparison Discount to appraised value 20.80% - 20.80% [20.80%] $ 237 FAIR VALUE OF FINANCIAL INSTRUMENTS The carrying amounts and estimated fair values of other financial instruments, at December 31, 2021 and December 31, 2020, are as follows (in thousands): Fair Value Measurements at December 31, 2021 Using Financial assets: Carrying Amount Quoted Prices Significant Other Observable Inputs Significant Unobservable Inputs Estimated Cash and due from financial institutions $ 17,365 $ 17,365 $ — $ — $ 17,365 Interest-bearing deposits in other financial institutions 9,616 9,616 — — 9,616 Equity investments 2,964 2,964 — — 2,964 Securities available for sale 792,026 60,431 731,595 — 792,026 Securities held to maturity 3,790 — 1,639 2,157 3,796 FHLBNY and FRBNY stock 4,218 — — — N/A Loans, net and loans held for sale 1,497,620 — — 1,480,967 1,480,967 Accrued interest receivable 5,985 106 1,746 4,133 5,985 Derivative assets 9,498 — 9,498 — 9,498 Financial liabilities: Deposits: Demand, savings, and insured money market accounts $ 1,959,076 $ 1,959,076 $ — $ — $ 1,959,076 Time deposits 196,357 — 197,658 — 197,658 Accrued interest payable 210 10 200 — 210 Derivative liabilities 9,726 — 9,726 — 9,726 (1) Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair Value Measurements at December 31, 2020 Using Financial Assets: Carrying Amount Quoted Prices Significant Other Observable Inputs Significant Unobservable Inputs Estimated Cash and due from financial institutions $ 29,467 $ 29,467 $ — $ — $ 29,467 Interest-bearing deposits in other financial institutions 79,071 79,071 — — 79,071 Equity investments 2,542 2,542 — — 2,542 Securities available for sale 554,611 — 554,611 — 554,611 Securities held to maturity 2,469 — 2,175 326 2,501 FHLBNY and FRBNY stock 3,150 — — — N/A Loans, net and loans held for sale 1,515,709 — — 1,514,318 1,514,318 Accrued interest receivable 6,271 — 1,356 4,915 6,271 Derivative assets 14,702 — 14,702 — 14,702 Financial liabilities: Deposits: Demand, savings, and insured money market accounts $ 1,752,043 $ 1,752,043 $ — $ — $ 1,752,043 Time deposits 285,731 — 288,398 — 288,398 Accrued interest payable 262 11 251 — 262 Derivative liabilities 15,059 — 15,059 — 15,059 (1) Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates.

REGULATORY CAPITAL REQUIREMENTS

REGULATORY CAPITAL REQUIREMENTS	12 Months Ended
	Dec. 31, 2021
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
REGULATORY CAPITAL REQUIREMENTS	REGULATORY CAPITAL REQUIREMENTS The Bank is subject to regulatory capital requirements administered by federal banking agencies. Capital adequacy guidelines and prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators. Failure to meet capital requirements can initiate regulatory action. Under Basel III rules, the Bank must hold a capital conservation buffer above the adequately capitalized risk-based capital ratios. The net unrealized gain or loss on available for sale securities and changes in the funded status of the defined benefit pension plan and other benefit plans are not included in computing regulatory capital. Management believes as of December 31, 2021, the Bank met all capital adequacy requirements to which they are subject. Prompt corrective action regulations provide five classifications: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized, although these terms are not used to represent overall financial condition. If adequately capitalized, regulatory approval is required to accept brokered deposits. If undercapitalized, capital distributions are limited, as is asset growth and expansion, and capital restoration plans are required. At December 31, 2020, the most recent regulatory notifications categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. The Corporation is no longer subject to FRB consolidated capital requirements applicable to bank holding companies, which are similar to those applicable to the Bank, until it reaches $3.0 billion in assets. As of December 31, 2021, the most recent notification from the Federal Reserve Bank of New York categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized the Bank must maintain minimum total risk-based, Tier 1 risk-based, common equity Tier 1 risk-based and Tier 1 leverage ratios as set forth in the table below. There have been no conditions or events since that notification that management believes have changed the Bank's or the Corporation's capital category. The Corporation’s principal source of funds for dividend payments is dividends received from the Bank. Banking regulations limit the amount of dividends that may be paid without prior approval of regulatory agencies. Under these regulations, the amount of dividends that may be paid in any calendar year is limited to the current year’s net income, combined with the retained net income of the preceding two years, subject to the capital requirements in the table below. During 2022, the Bank could, without prior approval, declare dividends of approximately $38.9 million plus any 2022 net income retained to the date of the dividend declaration. The actual capital amounts and ratios of the Corporation and the Bank are presented in the following tables (in thousands): Actual Minimal Capital Adequacy Minimal Capital Adequacy with Capital Buffer To Be Well As of December 31, 2021 Amount Ratio Amount Ratio Amount Ratio Amount Ratio Total Capital (to Risk Weighted Assets): Consolidated $ 215,091 14.21 % N/A N/A N/A N/A N/A N/A Bank $ 206,988 13.69 % $ 120,950 8.00 % $ 158,746 10.50 % $ 151,187 10.00 % Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 196,147 12.96 % N/A N/A N/A N/A N/A N/A Bank $ 188,063 12.44 % $ 90,712 6.00 % $ 128,509 8.50 % $ 120,950 8.00 % Common Equity Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 196,147 12.96 % N/A N/A N/A N/A N/A N/A Bank $ 188,063 12.44 % $ 68,034 4.50 % $ 105,831 7.00 % $ 98,272 6.50 % Tier 1 Capital (to Average Assets): Consolidated $ 196,147 8.06 % N/A N/A N/A N/A N/A N/A Bank $ 188,063 7.74 % $ 97,151 4.00 % N/A N/A $ 121,439 5.00 % Actual Minimum Capital Adequacy Minimal Capital Adequacy with Capital Buffer To Be Well Capitalized Under Prompt Corrective Action Provisions As of December 31, 2020 Amount Ratio Amount Ratio Amount Ratio Amount Ratio Total Capital (to Risk Weighted Assets): Consolidated $ 192,960 13.62 % N/A N/A N/A N/A N/A N/A Bank $ 185,606 13.12 % $ 113,182 8.00 % $ 148,551 10.50 % $ 141,478 10.00 % Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 175,216 12.37 % N/A N/A N/A N/A N/A N/A Bank $ 167,881 11.87 % $ 84,887 6.00 % $ 120,256 8.50 % $ 113,182 8.00 % Common Equity Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 175,216 12.37 % N/A N/A N/A N/A N/A N/A Bank $ 167,881 11.87 % $ 63,665 4.50 % $ 99,034 7.00 % $ 91,960 6.50 % Tier 1 Capital (to Average Assets): Consolidated $ 175,216 7.90 % N/A N/A N/A N/A N/A N/A Bank $ 167,881 7.59 % $ 88,474 4.00 % N/A N/A $ 110,592 5.00 %

ACCUMULATED OTHER COMPREHENSIVE

ACCUMULATED OTHER COMPREHENSIVE INCOME OR LOSS	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
ACCUMULATED OTHER COMPREHENSIVE INCOME OR LOSS	ACCUMULATED OTHER COMPREHENSIVE INCOME OR LOSS Accumulated other comprehensive income or loss represents the net unrealized holding gains or losses on securities available for sale and the funded status of the Corporation's defined benefit pension plan and other benefit plans, as of the consolidated balance sheet dates, net of the related tax effect. The following is a summary of the changes in accumulated other comprehensive income or loss by component, net of tax, for the periods indicated (in thousands): Unrealized Gains and Losses on Securities Available for Sale Defined Benefit and Other Benefit Plans Total Balance at January 1, 2021 $ 9,127 $ (6,726) $ 2,401 Other comprehensive income before reclassification (11,622) 2,698 (8,924) Amounts reclassified from accumulated other comprehensive income (loss) — (7) (7) Net current period other comprehensive income (loss) (11,622) 2,691 (8,931) Balance at December 31, 2021 $ (2,495) $ (4,035) $ (6,530) Unrealized Gains and Losses on Securities Available for Sale Defined Benefit and Other Benefit Plans Total Balance at January 1, 2020 $ 1,368 $ (7,167) $ (5,799) Other comprehensive income (loss) before reclassification 7,759 377 8,136 Amounts reclassified from accumulated other comprehensive income (loss) — 64 64 Net current period other comprehensive income (loss) 7,759 441 8,200 Balance at December 31, 2020 $ 9,127 $ (6,726) $ 2,401 The following is the reclassification out of accumulated other comprehensive income (loss) for the periods indicated (in thousands): Details about Accumulated Other Comprehensive Income (Loss) Components Year Ended December 31, Affected Line Item 2021 2020 Amortization of defined pension plan and other benefit plan items: Prior service costs (a) (220) (220) Other components of net periodic pension and postretirement benefits Actuarial losses (a) 212 300 Other components of net periodic pension and postretirement benefits Tax effect 1 (15) Income tax expense Total reclassification for the period, net of tax $ (7) $ 65 (a) These accumulated other comprehensive income (loss) components are included in the computation of net periodic pension and other benefit plan costs (see Note 13 for additional information).

SEGMENT REPORTING

SEGMENT REPORTING	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
SEGMENT REPORTING	SEGMENT REPORTING The Corporation manages its operations through two primary business segments: core banking and WMG. The core banking segment provides revenues by attracting deposits from the general public and using such funds to originate consumer, commercial, commercial real estate, and residential mortgage loans, primarily in the Corporation’s local markets and to invest in securities. The WMG services segment provides revenues by providing trust and investment advisory services to clients. Accounting policies for the segments are the same as those described in Note 1. Summarized financial information concerning the Corporation’s reportable segments and the reconciliation to the Corporation’s consolidated results are shown in the following table. Income taxes are allocated based on the separate taxable income of each entity and indirect overhead expenses are allocated based on reasonable and equitable allocations applicable to the reportable segment. The Holding Company, CFS, and CRM column below includes amounts to eliminate transactions between segments as well as income and expenses related to insurance products, mutual funds, brokerage services, and captive insurance (in thousands). Year ended December 31, 2021 Core Banking WMG Holding Company, CFS and CRM Consolidated Totals Interest and dividend income $ 68,984 $ — $ 24 $ 69,008 Interest expense 3,419 — — 3,419 Net interest income 65,565 — 24 65,589 Provision for loan losses 17 — — 17 Net interest income after provision for loan losses 65,548 — 24 65,572 Non-interest income 11,740 11,072 1,058 23,870 Non-interest expenses 47,807 6,642 1,233 55,682 Income (loss) before income tax expense 29,481 4,430 (151) 33,760 Income tax expense (benefit) 6,408 979 (52) 7,335 Segment net income (loss) $ 23,073 $ 3,451 $ (99) $ 26,425 Segment assets $ 2,410,934 $ 3,125 $ 4,416 $ 2,418,475 Year ended December 31, 2020 Core Banking WMG Holding Company, CFS and CRM Consolidated Totals Interest and dividend income $ 66,849 $ — $ 58 $ 66,907 Interest expense 3,988 — — 3,988 Net interest income 62,861 — 58 62,919 Provision for loan losses 4,239 — — 4,239 Net interest income after provision for loan losses 58,622 — 58 58,680 Non-interest income 10,982 9,492 650 21,124 Non-interest expenses 48,479 6,283 1,173 55,935 Income (loss) before income tax expense 21,125 3,209 (465) 23,869 Income tax expense (benefit) 3,952 824 (169) 4,607 Segment net income (loss) $ 17,173 $ 2,385 $ (296) $ 19,262 Segment assets $ 2,271,923 $ 3,231 $ 4,297 $ 2,279,451

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
ORGANIZATION	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	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 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	EQUITY INVESTMENTSSecurities 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	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	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 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	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
ALLOWANCE FOR LOAN LOSSES	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	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 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	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	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	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	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	WEALTH MANAGEMENT GROUP FEE INCOMEAssets 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.
POSTRETIREMENT BENEFITS	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 commissions. Bonuses, overtime, 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. 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 13 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. 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-insured 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 13 for further details. 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	STOCK-BASED COMPENSATION 2021 Equity Incentive Plan On June 8, 2021, the Corporation's shareholders approved the Corporation's 2021 Equity Incentive Plan (the "2021 Plan") which provides for the grant of stock-based awards to officers, employees and directors of the Corporation and the Bank. A Form S-8 Registration Statement was filed with the SEC on June 18, 2021 registering shares to be awarded under the 2021 Plan. The prior plan shall remain in existence solely for the purpose of administering outstanding grants. The 2021 Plan is designed to align the interests of the Corporation’s executives, senior managers and directors 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 and directors. Under the terms of the 2021 Plan, the Compensation and Personnel Committee may approve discretionary grants of restricted shares of the Corporation’s common stock to or for the benefit of employees selected to participate in the 2021 Plan, the chief executive officer and members of the Board of Directors. Awards are based on the performance, responsibility and contributions of the individual and are targeted at the median of the peer group. The maximum number of shares of the Corporation’s common stock that may be awarded as restricted shares related to the 2021 Plan may not exceed 170,000, upon which time the 2021 Plan will be amended, presented and approved by the Corporation's shareholders to include additional shares of the Corporation's common stock. Awards under the 2021 Plans may be vested no earlier than the first anniversary of the date on which the award is granted. Compensation expense for shares granted will be recognized over the vesting period of the award based upon average closing price of the Corporation's stock for each of the prior 30 trading days ending on the grant date. A Directors Deferred Fee Plan, an addendum to the 2021 Plan, for non-employee directors of the Corporation or the Bank, 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. See Note 14 for further details. 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 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, 2021. 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 with a remaining balance of $15 thousand. 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 identifiable core deposit intangible related to the FOFC acquisition was being amortized using a 10 year accelerated method and was fully amortized at December 31, 2021.
SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE	SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE The Corporation has the ability to enter 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	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,
OTHER FINANCIAL INSTRUMENTS	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	ADVERTISING COSTS Costs for advertising products and services or for promoting our corporate image are expensed as incurred.
EARNINGS PER COMMON SHARE	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 are considered outstanding and are included in the computation of basic earnings per share. 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) 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	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	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	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. 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 has established a committee to oversee the implementation of CECL and has selected a vendor to assist in the implementation process. The model chosen utilizes a loss driver analysis which includes reasonable and supportable forecasts to estimate future losses. This analysis includes different methods such as discounted cash flows, remaining life and vintage analysis, which are used depending on the nature of the portfolio segment. The Corporation is running its current incurred loss model and a CECL model concurrently. The Corporation is in the process of updating its policies and internal controls accordingly. The Corporation expects to recognize a one-time cumulative-effect adjustment to our allowance for loan losses upon adoption of CECL, effective of January 1, 2023, consistent with regulatory expectations set forth in interagency guidance. 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.
FAIR VALUE	Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There are three levels of inputs that may be used to measure fair value: Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3: Significant unobservable inputs that reflect a reporting entity's own assumptions about the assumptions that market participants would use in pricing an asset or liability. The Corporation used the following methods and significant assumptions to estimate fair value: Available for Sale Securities: The fair values of securities available for sale are usually determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1 inputs), or matrix pricing, which is a mathematical technique widely used to value debt securities without relying exclusively on quoted prices for the specific securities, but rather by relying on the securities' relationship to other benchmark quoted securities (Level 2 inputs). For securities where quoted prices or market prices of similar securities are not available, fair values are calculated using discounted cash flows or other market indicators (Level 3 inputs). Equity Investments: Securities that are held to fund a non-qualified deferred compensation plan and securities that have a readily determinable fair market value, are recorded with changes in fair value included in earnings. The fair values of equity investments are determined by quoted market prices (Level 1 inputs). Impaired Loans : At the time a loan is considered impaired, it is valued at the lower of cost or fair value. Impaired loans carried at fair value have been partially charged-off or receive specific allocations as part of the allowance for loan loss accounting. For collateral dependent loans, fair value is commonly based on real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value. Non-real estate collateral may be valued using an appraisal, net book value per the borrower’s financial statements, or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and management’s expertise and knowledge of the client and client’s business, typically resulting in a Level 3 fair value classification. Impaired loans are evaluated on a quarterly basis for additional impairment and adjusted accordingly. OREO : Assets acquired through or instead of loan foreclosures are initially recorded at fair value less costs to sell when acquired, establishing a new cost basis. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. Fair value is commonly based on recent real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value. Appraisals for both collateral-dependent impaired loans and OREO are performed by certified general appraisers (commercial properties) or certified residential appraisers (residential properties) whose qualifications and licenses have been reviewed and verified by the Corporation. Once received, appraisals are reviewed for reasonableness of assumptions, approaches utilized, Uniform Standards of Professional Appraisal Practice and other regulatory compliance, as well as the overall resulting fair value in comparison with independent data sources such as recent market data or industry-wide statistics. Appraisals are generally completed within the previous 12 month period prior to a property being placed into OREO. On impaired loans, appraisal values are adjusted based on the age of the appraisal, the position of the lien, the type of the property and its condition. Derivatives : The fair values of interest rate swaps are based on valuation models using observable market data as of the measurement date (Level 2 inputs). Derivatives are traded in an over-the-counter market where quoted market prices are not always available. Therefore, the fair values of derivatives are determined using quantitative models that utilize multiple market inputs. The inputs will vary based on the type of derivative, but could include interest rates, prices, and indices to generate continuous yield or pricing curves, prepayment rates, and volatility factors to value the position. The Corporation also incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counter-party's nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Corporation has considered the impact of any applicable credit enhancements, such as collateral postings. Although the Corporation has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with credit risk participations are based on credit default rate assumptions (Level 3 inputs).

SECURITIES (Tables)

SECURITIES (Tables)	12 Months Ended
	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Amortized Cost and Estimated Fair Value of Securities Available for Sale	Amortized cost and estimated fair value of securities available for sale at December 31, 2021 and 2020 are as follows (in thousands): 2021 2020 Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value U.S. treasury notes and bonds $ 61,084 $ 60,431 $ — $ — Mortgage-backed securities, residential $ 582,060 $ 577,361 $ 458,245 $ 467,866 Obligations of states and political subdivisions 40,299 42,303 40,662 43,405 Corporate bonds and notes 22,750 22,848 9,000 9,035 SBA loan pools 89,216 89,083 34,455 34,305 Total $ 795,409 $ 792,026 $ 542,362 $ 554,611 Gross unrealized gains and losses on securities available for sale at December 31, 2021 and 2020, were as follows (in thousands): 2021 2020 Unrealized Unrealized Unrealized Unrealized U.S. treasury notes and bonds $ 27 $ 680 $ — $ — Mortgage-backed securities, residential $ 4,032 $ 8,731 $ 9,822 $ 201 Obligations of states and political subdivisions 2,004 — 2,743 — Corporate bonds and notes 180 82 47 12 SBA loan pools 344 477 42 192 Total $ 6,587 $ 9,970 $ 12,654 $ 405
Amortized Cost and Estimated Fair Value of Debt Securities Available for Sale by Contractual Maturity	Securities not due at a single maturity date are shown separately (in thousands): December 31, 2021 Amortized Fair Within one year $ 1,302 $ 1,307 After one, but within five years 37,598 39,099 After five, but within ten years 25,087 25,652 After ten years 470 500 Mortgage-backed securities, residential 582,060 577,361 U.S. treasury notes and bonds 59,676 59,024 SBA loan pools 89,216 89,083 Total $ 795,409 $ 792,026
Amortized Cost and Estimated Fair Value of Securities Held to Maturity	Amortized cost and estimated fair value of securities held to maturity at December 31, 2021 and 2020 are as follows (in thousands): 2021 2020 Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value Obligations of states and political subdivisions $ 2,157 $ 2,157 $ 326 $ 326 Time deposits with other financial institutions 1,633 1,639 2,143 2,175 $ 3,790 $ 3,796 $ 2,469 $ 2,501 Gross unrealized gains and losses on securities held to maturity at December 31, 2021 and 2020, were as follows (in thousands): 2021 2020 Unrealized Unrealized Unrealized Unrealized Time deposits with other financial institutions $ 6 $ — $ 32 $ — Total $ 6 $ — $ 32 $ —
Contractual Maturities of Securities Held to Maturity	The contractual maturity of securities held to maturity is as follows at December 31, 2021 (in thousands): December 31, 2021 Amortized Fair Within one year $ 2,171 $ 2,176 After one, but within five years 819 820 After five, but within ten years 800 800 Total $ 3,790 $ 3,796
Investment Securities Available for Sale in Unrealized Loss Position	The following table summarizes the investment securities available for sale with unrealized losses at December 31, 2021 and December 31, 2020 by aggregated major security type and length of time in a continuous unrealized position (in thousands): Less than 12 months 12 months or longer Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized 2021 U.S. treasury notes and bonds $ 49,084 $ 680 $ — $ — $ 49,084 $ 680 Mortgage-backed securities, residential 293,720 4,502 122,050 4,229 415,770 8,731 Corporate bonds and notes 4,928 72 1,989 10 6,917 82 SBA loan pools 51,235 296 13,769 181 65,004 477 Total temporarily impaired securities $ 398,967 $ 5,550 $ 137,808 $ 4,420 $ 536,775 $ 9,970 Less than 12 months 12 months or longer Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized 2020 Mortgage-backed securities, residential $ 70,037 $ 200 $ 970 $ 1 $ 71,007 $ 201 Corporate bonds and notes 2,988 12 — — 2,988 12 SBA loan pools 15,245 156 3,636 36 18,881 192 Total temporarily impaired securities $ 88,270 $ 368 $ 4,606 $ 37 $ 92,876 $ 405

LOANS AND ALLOWANCE FOR LOAN _2

LOANS AND ALLOWANCE FOR LOAN LOSSES (Tables)	12 Months Ended
	Dec. 31, 2021
Loans and Leases Receivable Disclosure [Abstract]
Composition of Loan Portfolio by Type	The composition of the loan portfolio, net of deferred loan fees is summarized as follows (in thousands): December 31, 2021 December 31, 2020 Commercial and agricultural: Commercial and industrial $ 256,893 $ 368,663 Agricultural 394 283 Commercial mortgages: Construction 82,204 61,945 Commercial mortgages 720,358 654,663 Residential mortgages 259,334 239,401 Consumer loans: Home equity lines and loans 70,670 78,547 Indirect consumer loans 118,569 120,538 Direct consumer loans 9,827 12,423 Total loans, net of deferred loan fees 1,518,249 1,536,463 Interest receivable on loans 4,133 5,035 Total recorded investment in loans $ 1,522,382 $ 1,541,498
Allowance for Loan Losses by Portfolio Segment	The following tables present the activity in the allowance for loan losses by portfolio segment for the years ended December 31, 2021 and 2020, respectively (in thousands): December 31, 2021 Allowance for loan losses Commercial, and Agricultural Commercial Mortgages Residential Mortgages Consumer Loans Total Beginning balance: $ 4,493 $ 11,496 $ 2,079 $ 2,856 $ 20,924 Charge Offs: (28) (43) (75) (593) (739) Recoveries: 312 3 10 498 823 Net (charge offs) recoveries 284 (40) (65) (95) 84 Provision (1,186) 2,100 (211) (686) 17 Ending balance $ 3,591 $ 13,556 $ 1,803 $ 2,075 $ 21,025 December 31, 2020 Allowance for loan losses Commercial, and Agricultural Commercial Mortgages Residential Mortgages Consumer Loans Total Beginning balance: $ 10,227 $ 8,869 $ 1,252 $ 3,130 $ 23,478 Charge Offs: (4,068) (2,143) (56) (1,113) (7,380) Recoveries: 89 14 86 398 587 Net recoveries (charge offs) (3,979) (2,129) 30 (715) (6,793) Provision (1,755) 4,756 797 441 4,239 Ending balance $ 4,493 $ 11,496 $ 2,079 $ 2,856 $ 20,924
Allowance for Loan Losses and Recorded Investment in Loans Based on Impairment Method	The following tables present the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of December 31, 2021 and December 31, 2020 (in thousands): December 31, 2021 Allowance for loan losses Commercial Commercial Mortgages Residential Mortgages Consumer Loans Total Ending allowance balance attributable to loans: Individually evaluated for impairment $ 1,394 $ 1,571 $ — $ 65 $ 3,030 Collectively evaluated for impairment 2,197 11,985 1,803 2,010 17,995 Total ending allowance balance $ 3,591 $ 13,556 $ 1,803 $ 2,075 $ 21,025 December 31, 2020 Allowance for loan losses Commercial Commercial Mortgages Residential Mortgages Consumer Loans Total Ending allowance balance attributable to loans: Individually evaluated for impairment $ 1,401 $ 74 $ — $ 52 $ 1,527 Collectively evaluated for impairment 3,092 11,422 2,079 2,804 19,397 Total ending allowance balance $ 4,493 $ 11,496 $ 2,079 $ 2,856 $ 20,924 December 31, 2021 Loans: Commercial Commercial Mortgages Residential Mortgages Consumer Loans Total Loans individually evaluated for impairment $ 2,427 $ 7,967 $ 938 $ 315 $ 11,647 Loans collectively evaluated for impairment 255,586 796,858 259,029 199,262 1,510,735 Total ending loans balance $ 258,013 $ 804,825 $ 259,967 $ 199,577 $ 1,522,382 December 31, 2020 Loans: Commercial Commercial Mortgages Residential Mortgages Consumer Loans Total Loans individually evaluated for impairment $ 3,400 $ 5,117 $ 1,271 $ 801 $ 10,589 Loans collectively evaluated for impairment 366,852 714,028 238,742 211,287 1,530,909 Total ending loans balance $ 370,252 $ 719,145 $ 240,013 $ 212,088 $ 1,541,498
Summary of Impaired Financing Receivables	The following tables present loans individually evaluated for impairment recognized by class of loans as of December 31, 2021 and December 31, 2020, the average recorded investment and interest income recognized by class of loans as of the years ended December 31, 2021 and 2020 (in thousands): December 31, 2021 December 31, 2020 Unpaid Principal Balance Recorded Investment Allowance for Loan Losses Allocated Unpaid Principal Balance Recorded Investment Allowance for Loan Losses Allocated With no related allowance recorded: Commercial and agricultural: Commercial and industrial $ 954 $ 948 $ — $ 1,960 $ 1,963 $ — Commercial mortgages: Construction 129 130 — 188 189 — Commercial mortgages 6,940 4,278 — 6,814 4,760 — Residential mortgages 951 938 — 1,283 1,271 — Consumer loans: Home equity lines and loans 185 169 — 645 631 — With an allowance recorded: Commercial and agricultural: Commercial and industrial 5,350 1,479 1,394 5,228 1,437 1,401 Commercial mortgages: Commercial mortgages 3,550 3,559 1,571 258 168 74 Consumer loans: Home equity lines and loans 146 146 65 170 170 52 Total $ 18,205 $ 11,647 $ 3,030 $ 16,546 $ 10,589 $ 1,527 December 31, 2021 December 31, 2020 Average Recorded Investment Interest Income Recognized (1) Average Recorded Investment Interest Income Recognized (1) With no related allowance recorded: Commercial and agricultural: Commercial and industrial $ 1,505 $ 6 $ 936 $ 16 Commercial mortgages: Construction 159 6 219 8 Commercial mortgages 4,650 30 4,103 16 Residential mortgages 1,015 40 952 25 Consumer loans: Home equity lines & loans 273 7 446 7 With an allowance recorded: Commercial and agricultural: Commercial and industrial 1,505 8 4,981 4 Commercial mortgages: Commercial mortgages 2,236 49 2,949 — Consumer loans: Home equity lines and loans 157 — 104 — Total $ 11,500 $ 146 $ 14,690 $ 76 (1) Cash basis interest income approximates interest income recognized.
Recorded Investment in Past Due and Non-Accrual Status by Class of Loans	The following tables present the recorded investment in non-accrual and loans past due 90 days or more and still accruing by class of loans as of December 31, 2021 and December 31, 2020 (in thousands): Non-accrual Loans Past Due 90 Days or More and Still Accruing 2021 2020 2021 2020 Commercial and agricultural: Commercial and industrial $ 1,932 $ 2,167 $ 4 $ 2 Commercial mortgages: Construction 34 55 — — Commercial mortgages 3,844 4,415 — — Residential mortgages 1,039 1,632 — — Consumer loans: Home equity lines and loans 790 1,159 — — Indirect consumer loans 462 519 — — Direct consumer loans 13 5 — — Total $ 8,114 $ 9,952 $ 4 $ 2 The following tables present the aging of the recorded investment in loans as of December 31, 2021 and December 31, 2020 (in thousands): December 31, 2021 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total Past Due Loans Not Past Due Total Commercial and agricultural: Commercial and industrial $ 413 $ 148 $ 26 $ 587 $ 257,031 $ 257,618 Agricultural — — — — 395 395 Commercial mortgages: Construction — — — — 82,435 82,435 Commercial mortgages 24 224 1,302 1,550 720,840 722,390 Residential mortgages 580 32 652 1,264 258,703 259,967 Consumer loans: Home equity lines and loans 256 69 424 749 70,105 70,854 Indirect consumer loans 1,179 424 255 1,858 116,997 118,855 Direct consumer loans 24 11 13 48 9,820 9,868 Total $ 2,476 $ 908 $ 2,672 $ 6,056 $ 1,516,326 $ 1,522,382 December 31, 2020 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total Past Due Loans Not Past Due Total Commercial and agricultural: Commercial and industrial $ 520 $ 14 $ 30 $ 564 $ 369,404 $ 369,968 Agricultural — — — — 284 284 Commercial mortgages: Construction — — — — 62,164 62,164 Commercial mortgages 1,438 3,696 308 5,442 651,539 656,981 Residential mortgages 817 406 461 1,684 238,329 240,013 Consumer loans: Home equity lines and loans 521 41 474 1,036 77,725 78,761 Indirect consumer loans 1,268 198 252 1,718 119,135 120,853 Direct consumer loans 34 2 — 36 12,438 12,474 Total $ 4,598 $ 4,357 $ 1,525 $ 10,480 $ 1,531,018 $ 1,541,498
Loans by Class Modified as Troubled Debt Restructurings	The following table presents loans by class modified as troubled debt restructurings that occurred during the years ended December 31, 2021 and 2020 (in thousands): December 31, 2021 Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Troubled debt restructurings: Commercial and agricultural: Commercial and industrial 2 $ 502 $ 502 Commercial mortgages: Commercial mortgages 4 6,094 6,094 Total 6 $ 6,596 $ 6,596 The TDRs described above increased the allowance for loan losses by $1.7 million and resulted in no charge offs during the year ended December 31, 2021. December 31, 2020 Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Troubled debt restructurings: Commercial and agricultural: Commercial and industrial 4 $ 2,068 $ 2,068 Commercial mortgages: Commercial mortgages 4 1,297 1,297 Residential mortgages 4 997 997 Consumer loans: Home equity lines and loans 3 738 738 Total 15 $ 5,100 $ 5,100 The TDRs described above increased the allowance for loan losses by $0.2 million and resulted in no charge offs during the year ended December 31, 2020. A loan is considered to be in payment default once it is 90 days contractually past due under the modified terms. There were no payment defaults on any loans previously modified as troubled debt restructurings during the year ended December 31, 2021, within twelve months following the modification. The following table presents loans by class modified as TDRs for which there was a payment default within twelve months following the modification during the year ended December 31, 2020: December 31, 2020 Number of Loans Recorded Investment Consumer loans: Home equity lines and loans 1 $ 170 Total 1 $ 170
Risk Category of Recorded Investment of Loans by Class of Loans	Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered to be pass rated loans. Loans listed as not rated are included in groups of homogeneous loans. Based on the analyses performed as of December 31, 2021 and 2020, the risk category of the recorded investment of loans by class of loans is as follows (in thousands): December 31, 2021 Not Rated Pass Special Mention Substandard Doubtful Total Commercial and agricultural: Commercial and industrial $ — $ 250,529 $ 2,892 $ 3,108 $ 1,089 $ 257,618 Agricultural — 395 — — — 395 Commercial mortgages: Construction — 82,404 — 31 — 82,435 Commercial mortgages — 672,741 31,072 17,458 1,119 722,390 Residential mortgages 258,928 — 1,039 — 259,967 Consumer loans Home equity lines and loans 70,064 — — 790 — 70,854 Indirect consumer loans 118,393 — — 462 — 118,855 Direct consumer loans 9,855 — — 13 — 9,868 Total $ 457,240 $ 1,006,069 $ 33,964 $ 22,901 $ 2,208 $ 1,522,382 December 31, 2020 Not Rated Pass Special Mention Substandard Doubtful Total Commercial and agricultural: Commercial and industrial $ — $ 360,500 $ 2,999 $ 5,092 $ 1,377 $ 369,968 Agricultural — 284 — — — 284 Commercial mortgages: Construction — 59,885 — 2,279 — 62,164 Commercial mortgages — 616,090 23,631 16,128 1,132 656,981 Residential mortgages 238,381 — — 1,632 — 240,013 Consumer loans Home equity lines and loans 77,602 — — 1,159 — 78,761 Indirect consumer loans 120,334 — — 519 — 120,853 Direct consumer loans 12,470 — — 4 — 12,474 Total $ 448,787 $ 1,036,759 $ 26,630 $ 26,813 $ 2,509 $ 1,541,498
Recorded Investment in Residential and Consumer Loans Based on Payment Activity	The following table presents the recorded investment in residential and consumer loans based on payment activity as of December 31, 2021 and 2020 (in thousands): December 31, 2021 Consumer Loans Residential Mortgages Home Equity Lines and Loans Indirect Consumer Loans Other Direct Consumer Loans Performing $ 258,928 $ 70,064 $ 118,393 $ 9,855 Non-Performing 1,039 790 462 13 Total $ 259,967 $ 70,854 $ 118,855 $ 9,868 December 31, 2020 Consumer Loans Residential Mortgages Home Equity Lines and Loans Indirect Consumer Loans Other Direct Consumer Loans Performing $ 238,381 $ 77,602 $ 120,334 $ 12,470 Non-Performing 1,632 1,159 519 4 Total $ 240,013 $ 78,761 $ 120,853 $ 12,474

PREMISES AND EQUIPMENT (Tables)

PREMISES AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Schedule of Premises and Equipment	Premises and equipment at December 31, 2021 and 2020 are as follows (in thousands): 2021 2020 Land $ 4,710 $ 4,803 Buildings 40,726 41,957 Projects in progress 5 65 Equipment and furniture 37,183 37,183 Leasehold improvements 5,318 5,285 87,942 89,293 Less accumulated depreciation and amortization 69,973 69,174 Net book value $ 17,969 $ 20,119 The Corporation has included these leases in premises and equipment as follows: 2021 2020 Buildings $ 5,572 $ 5,572 Accumulated depreciation (2,208) (1,875) Net book value $ 3,364 $ 3,697

LEASES (Tables)

LEASES (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Assets and Liabilities, Lessee	Leased branch properties at December 31, 2021 and December 31, 2020 consist of the following (in thousands): December 31, 2021 December 31, 2020 Operating lease right-of-use asset $ 7,145 $ 8,001 Less: accumulated amortization (759) (705) Less: lease termination (313) (151) Add: new lease agreement and modifications $ 1,161 $ — Operating lease right-of-use-assets, net $ 7,234 $ 7,145
Lessee, Operating Lease, Liability, Maturity	The following is a schedule by year of the undiscounted cash flows of the operating lease liabilities, excluding CAM charges, as of December 31, 2021 (in thousands): Year Amount 2022 $ 979 2023 992 2024 924 2025 841 2026 845 2027 and thereafter 4,021 Total minimum lease payments 8,602 Less: amount representing interest (1,224) Present value of net minimum lease payments $ 7,378
Finance Lease, Liability, Maturity	The following is a schedule by year of future minimum lease payments under the capitalized lease, together with the present value of net minimum lease payments as of December 31, 2021 (in thousands): Year Amount 2022 $ 391 2023 391 2024 391 2025 409 2026 425 2027 and thereafter 2,415 Total minimum lease payments 4,422 Less: amount representing interest (828) Present value of net minimum lease payments $ 3,594

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Changes in Goodwill	The changes in goodwill included in the core banking segment during the years ended December 31, 2021 and 2020 were as follows (in thousands): 2021 2020 Beginning of year $ 21,824 $ 21,824 Acquired goodwill — — End of year $ 21,824 $ 21,824
Schedule of Acquired Intangible Assets	Acquired intangible assets were as follows at December 31, 2021 and 2020 (in thousands): At December 31, 2021 At December 31, 2020 Balance Acquired Accumulated Amortization Balance Acquired Accumulated Amortization Core deposit intangibles $ 5,975 $ 5,974 $ 5,975 $ 5,962 Other customer relationship intangibles 5,633 5,619 5,633 5,388 Total $ 11,608 $ 11,593 $ 11,608 $ 11,350
Schedule of Remaining Estimated Aggregate Amortization Expense	The remaining estimated aggregate amortization expense at December 31, 2021 is listed below (in thousands): Year Estimated Expense 2022 $ 15 Total $ 15

DEPOSITS (Tables)

DEPOSITS (Tables)	12 Months Ended
	Dec. 31, 2021
Deposits [Abstract]
Summary of Deposits	A summary of deposits at December 31, 2021 and 2020 is as follows (in thousands): 2021 2020 Non-interest-bearing demand deposits $ 739,607 $ 620,423 Interest-bearing demand deposits 284,721 282,172 Insured money market accounts 654,553 603,583 Savings deposits 280,195 245,865 Time deposits 196,357 285,731 Total $ 2,155,433 $ 2,037,774
Scheduled Maturities of Time Deposits	Scheduled maturities of time deposits at December 31, 2021, are summarized as follows (in thousands): Year Maturities 2022 $ 165,290 2023 16,067 2024 10,695 2025 876 2026 226 2027 3,203 Total $ 196,357

FEDERAL HOME LOAN BANK TERM A_2

FEDERAL HOME LOAN BANK TERM ADVANCES AND OVERNIGHT ADVANCES (Tables)	12 Months Ended
	Dec. 31, 2021
Advances from Federal Home Loan Banks [Abstract]
Schedule of Federal Home Loan Bank, Advances, by Branch of FHLB Bank	The following is a summary of FHLBNY fixed rate term advances and overnight advances as of December 31, 2021. The carrying amount includes the advance balance plus purchase accounting adjustments that are amortized over the term of the advance (in thousands): 2021 Amount Rate Maturity Date Call Date $ 14,570 0.34 % January 3, 2022 - $ 14,570 0.34 %

REVENUE FROM CONTRACTS WITH C_2

REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following tables present the Corporation's non-interest income by revenue stream and reportable segment for the years ended December 31, 2021 and 2020 (in thousands). Items outside the scope of ASC 606 are noted as such. Year ended December 31, 2021 Revenue by Operating Segment: Core Banking WMG Holding Company, CFS, and CRM (b) Total Non-interest income Service charges on deposit accounts Overdraft fees $ 2,266 $ — $ — $ 2,266 Other 948 — — 948 Interchange revenue from debit card transactions 4,844 — — 4,844 WMG fee income — 11,072 — 11,072 CFS fee and commission income — — 1,043 1,043 Net gains (losses) on sales of OREO (16) — — (16) Net gains on sales of loans (a) 1,073 — — 1,073 Loan servicing fees (a) 148 — — 148 Change in fair value of equity securities (a) 161 — 85 246 Income from bank-owned life insurance (a) 52 — 52 Other (a) 2,264 — (70) 2,194 Total non-interest income $ 11,740 $ 11,072 $ 1,058 $ 23,870 (a) Not within scope of ASC 606. (b) The Holding Company, CFS, and CRM column above includes amounts to eliminate transactions between segments. Year ended December 31, 2020 Revenue by Operating Segment: Core Banking WMG Holding Company, CFS, and CRM (b) Total Non-interest income Service charges on deposit accounts Overdraft fees $ 2,304 $ — $ — $ 2,304 Other 830 — — 830 Interchange revenue from debit card transactions 4,068 — — 4,068 WMG fee income — 9,492 — 9,492 CFS fee and commission income — — 657 657 Net gains (losses) on sales of OREO (79) — — (79) Net gains on sales of loans (a) 1,730 — — 1,730 Loan servicing fees (a) 121 — — 121 Change in fair value of equity securities (a) 139 — (50) 89 Income from bank-owned life insurance (a) 161 — — 161 Other (a) 1,708 — 43 1,751 Total non-interest income $ 10,982 $ 9,492 $ 650 $ 21,124 (a) Not within scope of ASC 606. (b) The Holding Company, CFS, and CRM column above includes amounts to eliminate transactions between segments.

DERIVATIVES (Tables)

DERIVATIVES (Tables)	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The following table presents information regarding our derivative financial instruments, at December 31: 2021 Number of Instruments Notional Amount Weighted Average Maturity Weighted Average Interest Rate Received Weighted Average Contract Pay Rate Fair Value Other Assets/ (Other Liabilities) Derivatives not designated as hedging instruments: Interest rate swap agreements on loans with commercial loan customers 35 $ 235,730 7.7 3.83 % 2.14 % $ (9,711) Interest rate swap agreements with third-party counter-parties 35 235,730 7.7 2.14 % 3.83 % 9,498 Risk participation agreements 4 18,552 2.2 (15) Total 74 $ 490,012 $ (228) 2020 Number of Instruments Notional Amount Weighted Average Maturity Weighted Average Interest Rate Received Weighted Average Contract Pay Rate Fair Value Other Assets/ (Other Liabilities) Derivatives not designated as hedging instruments: Interest rate swap agreements on loans with commercial loan customers 26 $ 179,085 7.7 3.95 % 2.20 % $ (15,024) Interest rate swap agreements with third-party counter-parties 26 179,085 7.7 2.20 % 3.95 % 14,702 Risk participation agreements 4 18,840 2.8 (35) 56 $ 377,010 $ (357)
Schedule of Derivatives Not Designated as Hedging Instruments, Statements of Income	Amounts included in the Consolidated Statements of Income related to derivatives not designated as hedging were as follows: Years Ended December 31, 2021 2020 Derivatives not designated as hedging instruments: Interest rate swap agreements with commercial loan customers: Unrealized (loss) recognized in non-interest income $ 5,313 $ (8,224) Interest rate swap agreements with third-party counter-parties: Unrealized gain recognized in non-interest income (5,204) 8,236 Risk participation agreements: Unrealized gain (loss) recognized in non-interest income 20 (4) Unrealized gain (loss) recognized in non-interest income $ 129 $ 8

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Components of Income Tax Expense Attributable to Income from Operations	For the years ended December 31, 2021 and 2020, income tax expense attributable to income from operations consisted of the following (in thousands): 2021 2020 Current expense: Federal $ 5,732 $ 4,413 State 1,033 280 Total current 6,765 4,693 Deferred expense/(benefit): Federal 527 (136) State 43 50 Total deferred 570 (86) Income tax expense $ 7,335 $ 4,607
Reconciliation of Income Tax Expense	Income tax expense differed from the amounts computed by applying the U.S. Federal statutory income tax rate to income before income tax expense as follows (in thousands): 2021 2020 Statutory federal tax rate 21 % 21 % Tax computed at statutory rate $ 7,090 $ 5,013 Increase (reduction) resulting from: Tax-exempt income (380) (395) 831(b) premium adjustment (291) (296) Dividend exclusion (8) (5) State taxes, net of Federal impact 803 118 Nondeductible interest expense 4 5 Other items, net 117 167 Income tax expense $ 7,335 $ 4,607 Effective tax rate 21.7 % 19.3 %
Deferred Tax Assets and Deferred Tax Liabilities	The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2021 and 2020, are presented below (in thousands): 2021 2020 Deferred tax assets: Allowance for loan losses $ 5,546 $ 5,393 Accrual for employee benefit plans — 47 Depreciation 979 681 Deferred compensation and directors' fees 1,130 1,045 Operating lease liabilities 1,976 1,831 Purchase accounting adjustment – loans — 1 Purchase accounting adjustment – fixed assets 153 149 Gain on deemed sale of securities — 54 Net unrealized losses on securities available for sale 886 — Accounting for defined benefit pension and other benefit plans 1,347 2,302 Nonaccrued interest 473 687 Accrued expense 139 158 Other items, net 127 48 Total gross deferred tax assets 12,756 12,396 Deferred tax liabilities: Deferred loan fees and costs 355 274 Prepaid pension 3,715 3,344 Net unrealized gains on securities available for sale — 3,124 Discount accretion 78 50 Core deposit intangible 1,556 1,353 REIT dividend 608 616 Operating lease right-of-use assets 1,976 1,831 Accrual for employee benefit plans 3 — Other 344 168 Total gross deferred tax liabilities 8,635 10,760 Net deferred tax asset $ 4,121 $ 1,636

PENSION PLAN AND OTHER BENEFI_2

PENSION PLAN AND OTHER BENEFIT PLANS (Tables)	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Change in Benefit Obligation	The following table presents (1) changes in the plan's projected benefit obligation and plan assets, and (2) the plan's funded status at December 31, 2021 and 2020 (in thousands): Change in projected benefit obligation: 2021 2020 Benefit obligation at beginning of year $ 42,781 $ 39,886 Service cost — — Interest cost 1,084 1,300 Actuarial (gain) loss (1,300) 3,735 Curtailments — — Settlements — — Benefits paid (2,161) (2,140) Benefit obligation at end of year $ 40,404 $ 42,781 The following table presents (1) changes in the plan's accumulated postretirement benefit obligation and (2) the plan's funded status at December 31, 2021 and 2020 (in thousands): Changes in accumulated postretirement benefit obligation: 2021 2020 Accumulated postretirement benefit obligation - beginning of year $ 249 $ 332 Service cost — — Interest cost 6 9 Participant contributions 20 35 Amendments — — Actuarial (gain) loss (37) (57) Benefits paid (44) (70) Accumulated postretirement benefit obligation at end of year $ 194 $ 249 The following table presents Executive Supplemental Pension plan status at December 31, 2021 and 2020 (in thousands): Change in projected benefit obligation: 2021 2020 Benefit obligation at beginning of year $ 1,251 $ 1,232 Service cost — — Interest cost 31 39 Actuarial (gain) loss — 89 Benefits paid (109) (109) Projected benefit obligation at end of year $ 1,173 $ 1,251
Change in Plan Assets	Change in plan assets: 2021 2020 Fair value of plan assets at beginning of year $ 50,134 $ 45,557 Actual return on plan assets 5,014 6,717 Employer contributions — — Settlements — — Benefits paid (2,161) (2,140) Fair value of plan assets at end of year $ 52,987 $ 50,134 Funded status $ 12,583 $ 7,353 Change in plan assets: 2021 2020 Fair value of plan assets at beginning of year $ — $ — Employer contribution 24 35 Plan participants’ contributions 20 35 Benefits paid (44) (70) Fair value of plan assets at end of year $ — $ — Unfunded status $ (194) $ (249) Changes in plan assets: 2021 2020 Fair value of plan assets at beginning of year $ — $ — Employer contributions 109 109 Benefits paid (109) (109) Fair value of plan assets at end of year $ — $ — Unfunded status $ (1,173) $ (1,251)
Amount Recognized in Accumulated Other Comprehensive Income	Amount recognized in accumulated other comprehensive income (loss) at December 31, 2021 and 2020 consist of the following (in thousands): 2021 2020 Net actuarial loss $ 4,833 $ 8,602 Prior service cost — — Total before tax effects $ 4,833 $ 8,602 Amount recognized in accumulated other comprehensive income (loss) at December 31, 2021 and 2020 consist of the following (in thousands): 2021 2020 Net actuarial loss $ 208 $ 286 Prior service credit — (220) Total before tax effects $ 208 $ 66 Amounts recognized in accumulated other comprehensive income (loss) at December 31, 2021 and 2020 consist of the following (in thousands): 2021 2020 Net actuarial loss $ 339 $ 359 Prior service cost — — Total before tax effects $ 339 $ 359
Assumptions Used in Determining Benefit Obligation	The principal actuarial assumptions used in determining the projected benefit obligation as of December 31, 2021 and 2020 were as follows: 2021 2020 Discount rate 2.87 % 2.61 % Assumed rate of future compensation increase N/A N/A Weighted-average interest crediting rate N/A N/A Accumulated benefit obligation at December 31, 2021 and 2020 was $1.2 million and $1.3 million, respectively. Weighted-average assumption for disclosure as of December 31: 2021 2020 Discount rate 2.87 % 2.61 % Assumed rate of future compensation increase N/A N/A Weighted-average interest crediting rate N/A N/A
Components of Net Periodic Benefit Cost	Components of net periodic benefit cost and other amounts recognized in other comprehensive income (loss) in 2021 and 2020 consist of the following (in thousands): Net periodic benefit cost 2021 2020 Service cost, benefits earned during the year $ — $ — Interest cost on projected benefit obligation 1,084 1,300 Expected return on plan assets (2,696) (2,444) Amortization of net loss 151 213 Amortization of prior service cost — — Recognized (gain) loss due to settlements — — Net periodic cost (benefit) $ (1,461) $ (931) The components of net periodic postretirement benefit cost for the years ended December 31, 2021 and 2020 are as follows (in thousands): Net periodic cost (benefit) 2021 2020 Service cost $ — $ — Interest cost 6 9 Expected return on plan assets — — Amortization of prior service benefit (220) (220) Recognized actuarial loss 42 74 Recognized prior service benefit due to curtailments — — Net periodic postretirement cost (benefit) $ (172) $ (137) The components of net periodic benefit cost for the years ended December 31, 2021 and 2020 are as follows (in thousands): Net periodic benefit cost 2021 2020 Service cost $ — $ — Interest cost 31 39 Recognized actuarial loss 19 13 Net periodic postretirement benefit cost $ 50 $ 52
Schedule of Other Amounts Recognized in Other Comprehensive Income	Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss): 2021 2020 Net actuarial (gain) loss $ (3,618) $ (538) Recognized loss (151) (213) Amortization of prior service cost — — Total recognized in other comprehensive income (loss) (before tax effect) $ (3,769) $ (751) Total recognized in net (benefit) cost and other comprehensive income (loss) (before tax effect) $ (5,230) $ (1,682) Other changes in plan assets and benefit obligations 2021 2020 Net actuarial (gain) loss $ (37) $ (57) Recognized actuarial loss (42) (74) Prior service credit — — Amortization of prior service benefit 220 220 Total recognized in other comprehensive income (loss)(before tax effect) $ 141 $ 89 Total recognized in net benefit cost and other comprehensive income (loss) (before tax effect) $ (31) $ (48) Other changes in plan assets and benefit obligation recognized in other comprehensive income (loss): 2021 2020 Net actuarial (gain) loss $ — $ 89 Recognized actuarial loss (19) (13) Total recognized in other comprehensive income (loss) (before tax effect) $ (19) $ 76 Total recognized in net benefit cost and other comprehensive income (loss) (before tax effect) $ 31 $ 128
Assumptions Used in Determining Net Periodic Benefit Cost	The principal actuarial assumptions used in determining the net periodic benefit cost for the years ended December 31, 2021, 2020 were as follows: 2021 2020 Discount rate 2.61 % 3.33 % Expected return on assets 5.50 % 5.50 % Assumed rate of future compensation increase N/A N/A Weighted-average interest crediting rate N/A N/A Weighted-average assumptions for net periodic cost as of December 31: 2021 2020 Discount rate 2.61 % 3.33 % Expected asset return N/A N/A Assumed rate of future compensation increase N/A N/A Weighted-average interest crediting rate N/A N/A
Target Assets Allocations	The expected return on plan assets was determined based on a CAPM using historical and expected future returns of the various asset classes, reflecting the target allocations described below. Asset Class Target Allocation 2021 Percentage of Plan Assets at December 31, Expected Long-Term Rate of Return 2021 2020 Large cap domestic equities 20% - 50% 42 % 43 % 10.1 % Mid-cap domestic equities 0% - 15% — % 2 % 10.5 % Small-cap domestic equities 0% - 10% 5 % 3 % 9.0 % International equities 0% - 20% 4 % 3 % 11.1 % Intermediate fixed income 30% - 70% 45 % 45 % 4.2 % Alternative assets 0% - 10% — % — % — % Cash 0% - 20% 4 % 4 % 1.1 % Total 100 % 100 %
Fair Value of Plan Assets	The fair value of the plan assets at December 31, 2021 and 2020, by asset class are as follows (in thousands): Fair Value Measurement atDecember 31, 2021 Using Plan Assets Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Cash $ 2,270 $ 2,270 $ — $ — Equity securities: U.S. companies 21,927 21,927 — — Mutual funds 26,345 26,345 — — Debt securities: U.S. Treasuries/Government bonds 2,181 2,181 — — U.S. Corporate bonds 264 264 — — Total plan assets $ 52,987 $ 52,987 $ — $ — Fair Value Measurement atDecember 31, 2020 Using Plan Assets Carrying Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Cash $ 2,047 $ 2,047 $ — $ — Equity securities: U.S. companies 21,716 21,716 — — Mutual funds 23,778 23,778 — — Debt securities: U.S. Treasuries/Government bonds 2,318 2,318 — — U.S. Corporate bonds 275 275 — — Total plan assets $ 50,134 $ 50,134 $ — $ —
Estimated Benefit Payments	The following table presents the estimated benefit payments for each of the next five years and the aggregate amount expected to be paid in years six through ten for the pension plan (in thousands): Calendar Year Future Expected Benefit Payments 2022 $ 2,295 2023 $ 2,329 2024 $ 2,336 2025 $ 2,328 2026 $ 2,326 2027-2031 $ 11,344 The following table presents the estimated benefit payments for each of the next five years and the aggregate amount expected to be paid in years six through ten (in thousands): Calendar Year Future Estimated Benefit Payments 2022 $ 33 2023 $ 35 2024 $ 19 2025 $ 18 2026 $ 17 2026-2030 $ 64 The following table presents the estimated benefit payments for each of the next five years and the aggregate amount expected to be paid in years six through ten for the Supplemental Pension Plan (in thousands): Calendar Year Future Estimated Benefit Payments 2022 $ 108 2023 $ 106 2024 $ 103 2025 $ 99 2026 $ 95 2027-2031 $ 403
Weighted-Average Assumption for Disclosure of Health Care Cost Trend	Weighted-average assumption for disclosure as of December 31: 2021 2020 Discount rate 2.87% 2.61% Assumed rate of future compensation increase N/A N/A Health care cost trend: Initial (Pre-65/Post 65) 6.95% / 5.45% 6.95% / 5.45% Health care cost trend: Ultimate (Pre-65/Post 65) 4.75% / 4.75% 4.75% / 4.75% Year ultimate cost trend reached 2027 2026
Weighted-Average Assumption for Net Periodic Cost	Weighted-average assumptions for net periodic cost as of December 31: 2021 2020 Discount rate 2.61% 3.33% Expected return on plan assets N/A N/A Assumed rate of future compensation increase N/A N/A Health care cost trend: Initial 6.95% / 5.45% 6.95% / 5.45% Health care cost tread: Ultimate 4.75% / 4.75% 4.75% / 4.75% Year ultimate reached 2026 2025

STOCK COMPENSATION (Tables)

STOCK COMPENSATION (Tables)	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Summary of Restricted Stock Activity	A summary of restricted stock activity as of December 31, 2021, and changes during the year ended is presented below: Shares Weighted–Average Grant Date Fair Value Nonvested at December 31, 2020 31,830 $ 40.32 Granted 20,763 46.36 Vested (14,756) 41.98 Forfeited or Cancelled — — Nonvested at December 31, 2021 37,837 $ 42.99

RELATED PARTY TRANSACTIONS (Tab

RELATED PARTY TRANSACTIONS (Tables)	12 Months Ended
	Dec. 31, 2021
Related Party Transactions [Abstract]
Summary of Related Party Loans	These loans are summarized as follows for the years ended December 31, 2021 and 2020 (in thousands): 2021 2020 Balance at beginning of year $ 56,052 $ 59,973 New loans or additional advances 2,642 7,461 Effect of changes in composition of related parties (122) — Repayments (7,380) (11,382) Balance at end of year $ 51,192 $ 56,052

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Contractual Amounts of Financial Instruments with Off-Balance Sheet Risk	The contractual amounts of financial instruments with off-balance sheet risk at year-end were as follows (in thousands): 2021 2020 Fixed Rate Variable Rate Fixed Rate Variable Rate Commitments to make loans $ 20,772 $ 46,558 $ 28,459 $ 39,056 Unused lines of credit $ 4,745 $ 288,368 $ 1,300 $ 268,075 Standby letters of credit $ — $ 7,974 $ — $ 16,094

PARENT COMPANY FINANCIAL INFO_2

PARENT COMPANY FINANCIAL INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Parent Company Statement of Financial Position	Condensed parent company only financial statement information of Chemung Financial Corporation is as follows (investment in subsidiaries is recorded using the equity method of accounting) (in thousands): BALANCE SHEETS - DECEMBER 31 2021 2020 Assets: Cash on deposit with subsidiary bank $ 2,473 $ 2,243 Investment in subsidiary - Chemung Canal Trust Company 203,373 192,364 Investment in subsidiary - CFS Group, Inc. 1,074 876 Investment in subsidiary - Chemung Risk Management, Inc. 2,661 2,563 Dividends receivable from subsidiary bank 1,450 1,214 Securities available for sale, at estimated fair value 391 377 Other assets 1,517 1,420 Total assets $ 212,939 $ 201,057 Liabilities and shareholders' equity: Dividends payable $ 1,450 $ 1,214 Other liabilities 34 144 Total liabilities 1,484 1,358 Shareholders' equity: Total shareholders' equity 211,455 199,699 Total liabilities and shareholders' equity $ 212,939 $ 201,057
Parent Company Statement of Income	STATEMENTS OF INCOME - YEARS ENDED DECEMBER 31 2021 2020 Dividends from subsidiary bank and non-bank $ 6,854 $ 10,806 Interest and dividend income 4 5 Non-interest income 85 (50) Non-interest expenses 432 503 Income before impact of subsidiaries' undistributed earnings 6,511 10,258 Equity in undistributed earnings of Chemung Canal Trust Company 19,492 8,204 Equity in undistributed earnings of CFS Group, Inc. 198 8 Equity in undistributed earnings of Chemung Risk Management, Inc. 98 610 Income before income tax 26,299 19,080 Income tax benefit (126) (182) Net income $ 26,425 $ 19,262
Parent Company Statement of Cash Flows	STATEMENTS OF CASH FLOWS - YEARS ENDED DECEMBER 31 2021 2020 Cash flows from operating activities: Net Income $ 26,425 $ 19,262 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed earnings of Chemung Canal Trust Company (19,492) (8,204) Equity in undistributed earnings of CFS Group, Inc. (198) (8) Equity in undistributed earnings of Chemung Risk Management, Inc. (98) (610) Change in dividend receivable (236) (1,214) Change in other assets (97) (154) Change in other liabilities (252) 8 Expense related to employee stock compensation 132 101 Expense related to restricted stock units for directors' deferred compensation plan 19 29 Expense to employee restricted stock awards 535 672 Net cash provided by operating activities 6,738 9,882 Cash flow from financing activities: Cash dividends paid (5,318) (5,006) Purchase of treasury stock (1,616) (7,589) Sale of treasury stock 426 1,018 Net cash used in financing activities (6,508) (11,577) Increase (decrease) in cash and cash equivalents 230 (1,695) Cash and cash equivalents at beginning of year 2,243 3,938 Cash and cash equivalents at end of year $ 2,473 $ 2,243

FAIR VALUES (Tables)

FAIR VALUES (Tables)	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis	Assets and liabilities measured at fair value on a recurring basis are summarized below (in thousands): Fair Value Measurement at December 31, 2021 Using Financial Assets: Fair Value Quoted Prices Significant Significant Unobservable Inputs U.S. treasury notes and bonds $ 60,431 $ 60,431 $ — $ — Mortgage-backed securities, residential $ 577,361 $ — $ 577,361 $ — Obligations of states and political subdivisions 42,303 — 42,303 — Corporate bonds and notes 22,848 — 22,848 — SBA loan pools 89,083 — 89,083 — Total available for sale securities $ 792,026 $ 60,431 $ 731,595 $ — Equity Investments $ 2,404 $ 2,404 $ — $ — Derivative assets 9,498 — 9,498 — Financial Liabilities: Derivative liabilities $ 9,726 $ — $ 9,726 $ — Fair Value Measurement at December 31, 2020 Using Financial Assets: Fair Value Quoted Prices Significant Other Observable Inputs Significant Unobservable Inputs Mortgage-backed securities, residential $ 467,866 $ — $ 467,866 $ — Obligations of states and political subdivisions 43,405 — 43,405 — Corporate bonds and notes 9,035 — 9,035 — SBA loan pools 34,305 — 34,305 — Total available for sale securities $ 554,611 $ — $ 554,611 $ — Equity investments $ 1,880 $ 1,880 $ — $ — Derivative assets 14,702 — 14,702 — Financial Liabilities: Derivative liabilities $ 15,059 $ — $ 15,059 $ —
Information Related To Level 3 Non-Recurring Fair Value Measurement	Assets and liabilities measured at fair value on a non-recurring basis are summarized below (in thousands): Fair Value Measurement at December 31, 2021 Using Financial Assets: Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Total Gains (Losses) Other real estate owned: Residential mortgages 143 — — 143 — Total other real estate owned, net $ 143 $ — $ — $ 143 $ — Fair Value Measurement at December 31, 2020 Using Financial Assets: Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Total Gains (Losses) Other real estate owned: Commercial mortgages: Commercial mortgages $ 111 $ — $ — $ 111 $ — Residential mortgages 126 — — 126 — Total other real estate owned, net $ 237 $ — $ — $ 237 $ — The following table presents information related to Level 3 non-recurring fair value measurement at December 31, 2021 and 2020 (in thousands): Asset Fair Value at December 31, 2021 Valuation Technique Unobservable Inputs Range OREO: Residential mortgages 143 Sales comparison Discount to appraised value 20.80% - 20.80% [20.80%] $ 143 Asset Fair Value at December 31, 2020 Valuation Technique Unobservable Inputs Range OREO: Commercial mortgages: Commercial mortgages $ 111 Sales comparison Discount to appraised value 20.80% - 20.80% [20.80%] Residential mortgages 126 Sales comparison Discount to appraised value 20.80% - 20.80% [20.80%] $ 237
Carrying Value and Estimated Fair Value of Other Financial Instruments	The carrying amounts and estimated fair values of other financial instruments, at December 31, 2021 and December 31, 2020, are as follows (in thousands): Fair Value Measurements at December 31, 2021 Using Financial assets: Carrying Amount Quoted Prices Significant Other Observable Inputs Significant Unobservable Inputs Estimated Cash and due from financial institutions $ 17,365 $ 17,365 $ — $ — $ 17,365 Interest-bearing deposits in other financial institutions 9,616 9,616 — — 9,616 Equity investments 2,964 2,964 — — 2,964 Securities available for sale 792,026 60,431 731,595 — 792,026 Securities held to maturity 3,790 — 1,639 2,157 3,796 FHLBNY and FRBNY stock 4,218 — — — N/A Loans, net and loans held for sale 1,497,620 — — 1,480,967 1,480,967 Accrued interest receivable 5,985 106 1,746 4,133 5,985 Derivative assets 9,498 — 9,498 — 9,498 Financial liabilities: Deposits: Demand, savings, and insured money market accounts $ 1,959,076 $ 1,959,076 $ — $ — $ 1,959,076 Time deposits 196,357 — 197,658 — 197,658 Accrued interest payable 210 10 200 — 210 Derivative liabilities 9,726 — 9,726 — 9,726 (1) Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair Value Measurements at December 31, 2020 Using Financial Assets: Carrying Amount Quoted Prices Significant Other Observable Inputs Significant Unobservable Inputs Estimated Cash and due from financial institutions $ 29,467 $ 29,467 $ — $ — $ 29,467 Interest-bearing deposits in other financial institutions 79,071 79,071 — — 79,071 Equity investments 2,542 2,542 — — 2,542 Securities available for sale 554,611 — 554,611 — 554,611 Securities held to maturity 2,469 — 2,175 326 2,501 FHLBNY and FRBNY stock 3,150 — — — N/A Loans, net and loans held for sale 1,515,709 — — 1,514,318 1,514,318 Accrued interest receivable 6,271 — 1,356 4,915 6,271 Derivative assets 14,702 — 14,702 — 14,702 Financial liabilities: Deposits: Demand, savings, and insured money market accounts $ 1,752,043 $ 1,752,043 $ — $ — $ 1,752,043 Time deposits 285,731 — 288,398 — 288,398 Accrued interest payable 262 11 251 — 262 Derivative liabilities 15,059 — 15,059 — 15,059 (1) Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates.

REGULATORY CAPITAL REQUIREMEN_2

REGULATORY CAPITAL REQUIREMENTS (Tables)	12 Months Ended
	Dec. 31, 2021
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Actual Capital Amounts and Ratios of Corporation and Bank	The actual capital amounts and ratios of the Corporation and the Bank are presented in the following tables (in thousands): Actual Minimal Capital Adequacy Minimal Capital Adequacy with Capital Buffer To Be Well As of December 31, 2021 Amount Ratio Amount Ratio Amount Ratio Amount Ratio Total Capital (to Risk Weighted Assets): Consolidated $ 215,091 14.21 % N/A N/A N/A N/A N/A N/A Bank $ 206,988 13.69 % $ 120,950 8.00 % $ 158,746 10.50 % $ 151,187 10.00 % Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 196,147 12.96 % N/A N/A N/A N/A N/A N/A Bank $ 188,063 12.44 % $ 90,712 6.00 % $ 128,509 8.50 % $ 120,950 8.00 % Common Equity Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 196,147 12.96 % N/A N/A N/A N/A N/A N/A Bank $ 188,063 12.44 % $ 68,034 4.50 % $ 105,831 7.00 % $ 98,272 6.50 % Tier 1 Capital (to Average Assets): Consolidated $ 196,147 8.06 % N/A N/A N/A N/A N/A N/A Bank $ 188,063 7.74 % $ 97,151 4.00 % N/A N/A $ 121,439 5.00 % Actual Minimum Capital Adequacy Minimal Capital Adequacy with Capital Buffer To Be Well Capitalized Under Prompt Corrective Action Provisions As of December 31, 2020 Amount Ratio Amount Ratio Amount Ratio Amount Ratio Total Capital (to Risk Weighted Assets): Consolidated $ 192,960 13.62 % N/A N/A N/A N/A N/A N/A Bank $ 185,606 13.12 % $ 113,182 8.00 % $ 148,551 10.50 % $ 141,478 10.00 % Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 175,216 12.37 % N/A N/A N/A N/A N/A N/A Bank $ 167,881 11.87 % $ 84,887 6.00 % $ 120,256 8.50 % $ 113,182 8.00 % Common Equity Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 175,216 12.37 % N/A N/A N/A N/A N/A N/A Bank $ 167,881 11.87 % $ 63,665 4.50 % $ 99,034 7.00 % $ 91,960 6.50 % Tier 1 Capital (to Average Assets): Consolidated $ 175,216 7.90 % N/A N/A N/A N/A N/A N/A Bank $ 167,881 7.59 % $ 88,474 4.00 % N/A N/A $ 110,592 5.00 %

ACCUMULATED OTHER COMPREHENSI_2

ACCUMULATED OTHER COMPREHENSIVE INCOME OR LOSS (Tables)	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Summary of Changes in Accumulated Other Comprehensive Income or Loss by Component, Net of Tax	The following is a summary of the changes in accumulated other comprehensive income or loss by component, net of tax, for the periods indicated (in thousands): Unrealized Gains and Losses on Securities Available for Sale Defined Benefit and Other Benefit Plans Total Balance at January 1, 2021 $ 9,127 $ (6,726) $ 2,401 Other comprehensive income before reclassification (11,622) 2,698 (8,924) Amounts reclassified from accumulated other comprehensive income (loss) — (7) (7) Net current period other comprehensive income (loss) (11,622) 2,691 (8,931) Balance at December 31, 2021 $ (2,495) $ (4,035) $ (6,530) Unrealized Gains and Losses on Securities Available for Sale Defined Benefit and Other Benefit Plans Total Balance at January 1, 2020 $ 1,368 $ (7,167) $ (5,799) Other comprehensive income (loss) before reclassification 7,759 377 8,136 Amounts reclassified from accumulated other comprehensive income (loss) — 64 64 Net current period other comprehensive income (loss) 7,759 441 8,200 Balance at December 31, 2020 $ 9,127 $ (6,726) $ 2,401
Reclassification Out of Accumulated Other Comprehensive Income	The following is the reclassification out of accumulated other comprehensive income (loss) for the periods indicated (in thousands): Details about Accumulated Other Comprehensive Income (Loss) Components Year Ended December 31, Affected Line Item 2021 2020 Amortization of defined pension plan and other benefit plan items: Prior service costs (a) (220) (220) Other components of net periodic pension and postretirement benefits Actuarial losses (a) 212 300 Other components of net periodic pension and postretirement benefits Tax effect 1 (15) Income tax expense Total reclassification for the period, net of tax $ (7) $ 65 (a) These accumulated other comprehensive income (loss) components are included in the computation of net periodic pension and other benefit plan costs (see Note 13 for additional information).

SEGMENT REPORTING (Tables)

SEGMENT REPORTING (Tables)	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Summarized Financial Information Concerning Reportable Segments And Reconciliation To Consolidated Results	The Holding Company, CFS, and CRM column below includes amounts to eliminate transactions between segments as well as income and expenses related to insurance products, mutual funds, brokerage services, and captive insurance (in thousands). Year ended December 31, 2021 Core Banking WMG Holding Company, CFS and CRM Consolidated Totals Interest and dividend income $ 68,984 $ — $ 24 $ 69,008 Interest expense 3,419 — — 3,419 Net interest income 65,565 — 24 65,589 Provision for loan losses 17 — — 17 Net interest income after provision for loan losses 65,548 — 24 65,572 Non-interest income 11,740 11,072 1,058 23,870 Non-interest expenses 47,807 6,642 1,233 55,682 Income (loss) before income tax expense 29,481 4,430 (151) 33,760 Income tax expense (benefit) 6,408 979 (52) 7,335 Segment net income (loss) $ 23,073 $ 3,451 $ (99) $ 26,425 Segment assets $ 2,410,934 $ 3,125 $ 4,416 $ 2,418,475 Year ended December 31, 2020 Core Banking WMG Holding Company, CFS and CRM Consolidated Totals Interest and dividend income $ 66,849 $ — $ 58 $ 66,907 Interest expense 3,988 — — 3,988 Net interest income 62,861 — 58 62,919 Provision for loan losses 4,239 — — 4,239 Net interest income after provision for loan losses 58,622 — 58 58,680 Non-interest income 10,982 9,492 650 21,124 Non-interest expenses 48,479 6,283 1,173 55,935 Income (loss) before income tax expense 21,125 3,209 (465) 23,869 Income tax expense (benefit) 3,952 824 (169) 4,607 Segment net income (loss) $ 17,173 $ 2,385 $ (296) $ 19,262 Segment assets $ 2,271,923 $ 3,231 $ 4,297 $ 2,279,451

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Period of delinquency after which a loan is placed on non-accrual status (days)	90 days
Number of consecutive months for which loans remain current before non-accrual loans are returned to accrual status	6 months
Rolling historical period of net losses used in evaluating general component of valuation allowance for loans not impaired but classified as substandard and special mention (years)	5 years
Number of most recent years of actual loss history used in determining historical loss experience for all other unclassified loans (years)	2 years
Assets under management	$ 2,325	$ 2,091
Chemung Financial Corporation
Property, Plant and Equipment [Line Items]
Assets under management	$ 344.2	$ 305.5
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives (years)	15 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives (years)	50 years
Equipment and Furniture | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives (years)	3 years
Equipment and Furniture | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives (years)	10 years

SUMMARY OF SIGNIFICANT ACCOUN_4

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Postretirement Benefits (Details)	12 Months Ended
	Dec. 31, 2021
Defined Contribution Profit Sharing, Savings and Investment Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan, employer non-discretionary contribution amount	3.00%
Contribution cost percentage	50.00%
Defined contribution plan, employer matching contribution, percent of employees' gross pay	6.00%
Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Normal retirement benefit as percentage of final average compensation (in hundredths)	1.20%
Number of consecutive years considered in final average compensation	5 years
Number of prior years considered in final average compensation	10 years
Maximum service period (years)	25 years
Normal retirement additional benefit	1.00%
Maximum additional service years	10 years
Percentage of average monthly compensation in excess of covered compensation for each year of credited service	0.65%
Maximum period of credited service (years)	35 years
Covered compensation period (years)	35 years
Other Postretirement Benefit Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution cost percentage	50.00%
Minimum age for eligibility before amendment	55 years
Contribution percentage before amendment	40.00%
Retiree premium percentage	100.00%
Cost of coverage contribution	50.00%
Premium contribution percentage after amendment	50.00%
Other Postretirement Benefit Plan | Minimum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Retiree age group range	55 years
Other Postretirement Benefit Plan | Maximum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Retiree age group range	65 years

SUMMARY OF SIGNIFICANT ACCOUN_5

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Stock-based compensation (Details)	12 Months Ended
	Dec. 31, 2021shares
Deferred Compensation, Share-based Payments
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum annual installments period (years)	10 years
2021 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	170,000
Trading days period	30 days

SUMMARY OF SIGNIFICANT ACCOUN_6

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Goodwill and Intangible Assets (Details) $ in Thousands	1 Months Ended	12 Months Ended
	Nov. 30, 2013branch	Dec. 31, 2021	May 31, 2007USD ($)
Partners Trust Bank | Trust Business
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets | $			$ 15
Useful life (years)		10 years
Bank of America
Finite-Lived Intangible Assets [Line Items]
Number of branches acquired | branch	6

RESTRICTIONS ON CASH AND DUE _2

RESTRICTIONS ON CASH AND DUE FROM BANK ACCOUNTS (Details) - USD ($) $ in Millions	Mar. 15, 2020	Dec. 31, 2021	Dec. 31, 2020
RESTRICTIONS ON CASH AND DUE FROM BANK ACCOUNTS [Abstract]
Reduced reserve requirement	0.00%
Reserve requirement		$ 1.6	$ 1.6
Derivative, collateral, obligation to return cash		$ 7.6	$ 19.1

SECURITIES - Securities Availab

SECURITIES - Securities Available for Sale (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Amortized cost and estimated fair value of debt securities available-for-sale
Amortized Cost	$ 795,409,000	$ 542,362,000
Estimated Fair Value	792,026,000	554,611,000
Unrealized Gains	6,587,000	12,654,000
Unrealized Losses	9,970,000	405,000
Amortized Cost
Within one year	1,302,000
After one, but within five years	37,598,000
After five, but within ten years	25,087,000
After ten years	470,000
Total	795,409,000	542,362,000
Fair Value
Within one year	1,307,000
After one, but within five years	39,099,000
After five, but within ten years	25,652,000
After ten years	500,000
Total	792,026,000	554,611,000
Proceeds from sales and calls of securities resulting in gains or losses
Proceeds	0	0
U.S. treasury notes and bonds
Amortized cost and estimated fair value of debt securities available-for-sale
Amortized Cost	61,084,000	0
Estimated Fair Value	60,431,000	0
Unrealized Gains	27,000	0
Unrealized Losses	680,000	0
Amortized Cost
Without single maturity date	59,676,000
Total	61,084,000	0
Fair Value
Without single maturity date	59,024,000
Total	60,431,000	0
Mortgage-backed securities, residential
Amortized cost and estimated fair value of debt securities available-for-sale
Amortized Cost	582,060,000	458,245,000
Estimated Fair Value	577,361,000	467,866,000
Unrealized Gains	4,032,000	9,822,000
Unrealized Losses	8,731,000	201,000
Amortized Cost
Without single maturity date	582,060,000
Total	582,060,000	458,245,000
Fair Value
Without single maturity date	577,361,000
Total	577,361,000	467,866,000
Obligations of states and political subdivisions
Amortized cost and estimated fair value of debt securities available-for-sale
Amortized Cost	40,299,000	40,662,000
Estimated Fair Value	42,303,000	43,405,000
Unrealized Gains	2,004,000	2,743,000
Unrealized Losses	0	0
Amortized Cost
Total	40,299,000	40,662,000
Fair Value
Total	42,303,000	43,405,000
Corporate bonds and notes
Amortized cost and estimated fair value of debt securities available-for-sale
Amortized Cost	22,750,000	9,000,000
Estimated Fair Value	22,848,000	9,035,000
Unrealized Gains	180,000	47,000
Unrealized Losses	82,000	12,000
Amortized Cost
Total	22,750,000	9,000,000
Fair Value
Total	22,848,000	9,035,000
SBA loan pools
Amortized cost and estimated fair value of debt securities available-for-sale
Amortized Cost	89,216,000	34,455,000
Estimated Fair Value	89,083,000	34,305,000
Unrealized Gains	344,000	42,000
Unrealized Losses	477,000	192,000
Amortized Cost
Without single maturity date	89,216,000
Total	89,216,000	34,455,000
Fair Value
Without single maturity date	89,083,000
Total	$ 89,083,000	$ 34,305,000

SECURITIES - Securities Held to

SECURITIES - Securities Held to Maturity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Amortized cost and estimated fair value of securities held to maturity [Abstract]
Amortized Cost	$ 3,790,000	$ 2,469,000
Estimated Fair Value	3,796,000	2,501,000
Unrealized Gains	6,000	32,000
Unrealized Losses	0	0
Amortized Cost
Within one year	2,171,000
After one, but within five years	819,000
After five, but within ten years	800,000
Total	3,790,000	2,469,000
Fair Value
Within one year	2,176,000
After one, but within five years	820,000
After five, but within ten years	800,000
Total	3,796,000	2,501,000
Gain (loss) on sale of held-to-maturity securities	0	0
Obligations of states and political subdivisions
Amortized cost and estimated fair value of securities held to maturity [Abstract]
Amortized Cost	2,157,000	326,000
Estimated Fair Value	2,157,000	326,000
Amortized Cost
Total	2,157,000	326,000
Fair Value
Total	2,157,000	326,000
Time deposits with other financial institutions
Amortized cost and estimated fair value of securities held to maturity [Abstract]
Amortized Cost	1,633,000	2,143,000
Estimated Fair Value	1,639,000	2,175,000
Unrealized Gains	6,000	32,000
Unrealized Losses	0	0
Amortized Cost
Total	1,633,000	2,143,000
Fair Value
Total	$ 1,639,000	$ 2,175,000

SECURITIES - Investment Securit

SECURITIES - Investment Securities Available for Sale in Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value
Less than 12 months	$ 398,967	$ 88,270
12 months or longer	137,808	4,606
Total	536,775	92,876
Unrealized Losses
Less than 12 months	5,550	368
12 months or longer	4,420	37
Total	9,970	405
U.S. treasury notes and bonds
Fair Value
Less than 12 months	49,084
12 months or longer	0
Total	49,084
Unrealized Losses
Less than 12 months	680
12 months or longer	0
Total	680
Mortgage-backed securities, residential
Fair Value
Less than 12 months	293,720	70,037
12 months or longer	122,050	970
Total	415,770	71,007
Unrealized Losses
Less than 12 months	4,502	200
12 months or longer	4,229	1
Total	8,731	201
Corporate bonds and notes
Fair Value
Less than 12 months	4,928	2,988
12 months or longer	1,989	0
Total	6,917	2,988
Unrealized Losses
Less than 12 months	72	12
12 months or longer	10	0
Total	82	12
SBA loan pools
Fair Value
Less than 12 months	51,235	15,245
12 months or longer	13,769	3,636
Total	65,004	18,881
Unrealized Losses
Less than 12 months	296	156
12 months or longer	181	36
Total	$ 477	$ 192

SECURITIES - Securities Pledged

SECURITIES - Securities Pledged and Equity Method Investments (Details) $ in Millions	Dec. 31, 2021USD ($)securitiePledged	Dec. 31, 2020USD ($)securitiePledged
Financial Instruments Owned and Pledged as Collateral [Line Items]
Fair value of securities pledged to secure public funds on deposit or for other purposes	$ 242.9	$ 180.8
Number of securities pledged | securitiePledged	0	0
Cephas Capital Partners, L.P.
Financial Instruments Owned and Pledged as Collateral [Line Items]
Equity method investments	$ 0.1	$ 0.2

LOANS AND ALLOWANCE FOR LOAN _3

LOANS AND ALLOWANCE FOR LOAN LOSSES - Loan Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	$ 1,518,249	$ 1,536,463
Interest receivable on loans	4,133	5,035
Total recorded investment in loans	1,522,382	1,541,498
Commercial, and Agricultural
Composition of loan portfolio [Abstract]
Total recorded investment in loans	258,013	370,252
Commercial Mortgages
Composition of loan portfolio [Abstract]
Total recorded investment in loans	804,825	719,145
Commercial Mortgages | Construction
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	82,204	61,945
Total recorded investment in loans	82,435	62,164
Commercial Mortgages | Commercial mortgages
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	720,358	654,663
Total recorded investment in loans	722,390	656,981
Residential Mortgages
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	259,334	239,401
Total recorded investment in loans	259,967	240,013
Consumer Loans
Composition of loan portfolio [Abstract]
Total recorded investment in loans	199,577	212,088
Consumer Loans | Home equity lines and loans
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	70,670	78,547
Total recorded investment in loans	70,854	78,761
Consumer Loans | Indirect Consumer Loans
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	118,569	120,538
Total recorded investment in loans	118,855	120,853
Consumer Loans | Direct consumer loans
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	9,827	12,423
Total recorded investment in loans	9,868	12,474
Commercial and industrial | Commercial, and Agricultural
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	256,893	368,663
Total recorded investment in loans	257,618	369,968
Agricultural | Commercial, and Agricultural
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	394	283
Total recorded investment in loans	$ 395	$ 284

LOANS AND ALLOWANCE FOR LOAN _4

LOANS AND ALLOWANCE FOR LOAN LOSSES - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential mortgages held for sale	$ 400,000	$ 200,000
Allowance for loan losses	$ 0
Number of days past due after which a retail loan is rated	90 days
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payroll Protection Program Loans - CARES Act	$ 43,200,000
Residential Mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans pledged as collateral	$ 204,200,000	$ 101,900,000

LOANS AND ALLOWANCE FOR LOAN _5

LOANS AND ALLOWANCE FOR LOAN LOSSES - Allowances (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance:	$ 20,924	$ 23,478
Charge Offs	(739)	(7,380)
Recoveries	823	587
Net (charge offs) recoveries	84	(6,793)
Provision	17	4,239
Ending balance	21,025	20,924
Ending allowance balance attributable to loans:
Individually evaluated for impairment	3,030	1,527
Collectively evaluated for impairment	17,995	19,397
Total ending allowance balance	21,025	20,924
Loans:
Loans individually evaluated for impairment	11,647	10,589
Loans collectively evaluated for impairment	1,510,735	1,530,909
Total recorded investment in loans	1,522,382	1,541,498
Commercial, and Agricultural
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance:	4,493	10,227
Charge Offs	(28)	(4,068)
Recoveries	312	89
Net (charge offs) recoveries	284	(3,979)
Provision	(1,186)	(1,755)
Ending balance	3,591	4,493
Ending allowance balance attributable to loans:
Individually evaluated for impairment	1,394	1,401
Collectively evaluated for impairment	2,197	3,092
Total ending allowance balance	3,591	4,493
Loans:
Loans individually evaluated for impairment	2,427	3,400
Loans collectively evaluated for impairment	255,586	366,852
Total recorded investment in loans	258,013	370,252
Commercial Mortgages
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance:	11,496	8,869
Charge Offs	(43)	(2,143)
Recoveries	3	14
Net (charge offs) recoveries	(40)	(2,129)
Provision	2,100	4,756
Ending balance	13,556	11,496
Ending allowance balance attributable to loans:
Individually evaluated for impairment	1,571	74
Collectively evaluated for impairment	11,985	11,422
Total ending allowance balance	13,556	11,496
Loans:
Loans individually evaluated for impairment	7,967	5,117
Loans collectively evaluated for impairment	796,858	714,028
Total recorded investment in loans	804,825	719,145
Residential Mortgages
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance:	2,079	1,252
Charge Offs	(75)	(56)
Recoveries	10	86
Net (charge offs) recoveries	(65)	30
Provision	(211)	797
Ending balance	1,803	2,079
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,803	2,079
Total ending allowance balance	1,803	2,079
Loans:
Loans individually evaluated for impairment	938	1,271
Loans collectively evaluated for impairment	259,029	238,742
Total recorded investment in loans	259,967	240,013
Consumer Loans
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance:	2,856	3,130
Charge Offs	(593)	(1,113)
Recoveries	498	398
Net (charge offs) recoveries	(95)	(715)
Provision	(686)	441
Ending balance	2,075	2,856
Ending allowance balance attributable to loans:
Individually evaluated for impairment	65	52
Collectively evaluated for impairment	2,010	2,804
Total ending allowance balance	2,075	2,856
Loans:
Loans individually evaluated for impairment	315	801
Loans collectively evaluated for impairment	199,262	211,287
Total recorded investment in loans	$ 199,577	$ 212,088

LOANS AND ALLOWANCE FOR LOAN _6

LOANS AND ALLOWANCE FOR LOAN LOSSES - Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Unpaid Principal Balance
Total	$ 18,205	$ 16,546
Recorded Investment
Total	11,647	10,589
Allowance for Loan Losses Allocated	3,030	1,527
Average Recorded Investment
With no related allowance recorded	11,500	14,690
Interest Income Recognized
With no related allowance recorded	146	76
Residential Mortgages
Unpaid Principal Balance
With no related allowance recorded	951	1,283
Recorded Investment
With no related allowance recorded	938	1,271
Average Recorded Investment
With no related allowance recorded	1,015	952
Interest Income Recognized
With no related allowance recorded	40	25
Construction | Commercial Mortgages
Unpaid Principal Balance
With no related allowance recorded	129	188
Recorded Investment
With no related allowance recorded	130	189
Average Recorded Investment
With no related allowance recorded	159	219
Interest Income Recognized
With no related allowance recorded	6	8
Commercial mortgages | Commercial Mortgages
Unpaid Principal Balance
With no related allowance recorded	6,940	6,814
With an allowance recorded	3,550	258
Recorded Investment
With no related allowance recorded	4,278	4,760
With an allowance recorded	3,559	168
Allowance for Loan Losses Allocated	1,571	74
Average Recorded Investment
With no related allowance recorded	4,650	4,103
With an allowance recorded	2,236	2,949
Interest Income Recognized
With no related allowance recorded	30	16
With an allowance recorded	49	0
Home equity lines and loans | Consumer Loans
Unpaid Principal Balance
With no related allowance recorded	185	645
With an allowance recorded	146	170
Recorded Investment
With no related allowance recorded	169	631
With an allowance recorded	146	170
Allowance for Loan Losses Allocated	65	52
Average Recorded Investment
With no related allowance recorded	273	446
With an allowance recorded	157	104
Interest Income Recognized
With no related allowance recorded	7	7
With an allowance recorded	0	0
Commercial and industrial | Commercial and industrial
Unpaid Principal Balance
With no related allowance recorded	954	1,960
With an allowance recorded	5,350	5,228
Recorded Investment
With no related allowance recorded	948	1,963
With an allowance recorded	1,479	1,437
Allowance for Loan Losses Allocated	1,394	1,401
Average Recorded Investment
With no related allowance recorded	1,505	936
With an allowance recorded	1,505	4,981
Interest Income Recognized
With no related allowance recorded	6	16
With an allowance recorded	$ 8	$ 4

LOANS AND ALLOWANCE FOR LOAN _7

LOANS AND ALLOWANCE FOR LOAN LOSSES - Receivables Past Due (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	$ 8,114	$ 9,952
Loans Past Due 90 Days or More and Still Accruing	4	2
Total recorded investment in loans	1,522,382	1,541,498
30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	2,476	4,598
60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	908	4,357
90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	2,672	1,525
Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	6,056	10,480
Loans Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	1,516,326	1,531,018
Commercial, and Agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	258,013	370,252
Commercial mortgages:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	804,825	719,145
Residential Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	1,039	1,632
Loans Past Due 90 Days or More and Still Accruing	0	0
Total recorded investment in loans	259,967	240,013
Residential Mortgages | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	580	817
Residential Mortgages | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	32	406
Residential Mortgages | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	652	461
Residential Mortgages | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	1,264	1,684
Residential Mortgages | Loans Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	258,703	238,329
Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	199,577	212,088
Construction | Commercial mortgages:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	34	55
Loans Past Due 90 Days or More and Still Accruing	0	0
Total recorded investment in loans	82,435	62,164
Construction | Commercial mortgages: | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	0	0
Construction | Commercial mortgages: | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	0	0
Construction | Commercial mortgages: | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	0	0
Construction | Commercial mortgages: | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	0	0
Construction | Commercial mortgages: | Loans Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	82,435	62,164
Commercial mortgages | Commercial mortgages:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	3,844	4,415
Loans Past Due 90 Days or More and Still Accruing	0	0
Total recorded investment in loans	722,390	656,981
Commercial mortgages | Commercial mortgages: | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	24	1,438
Commercial mortgages | Commercial mortgages: | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	224	3,696
Commercial mortgages | Commercial mortgages: | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	1,302	308
Commercial mortgages | Commercial mortgages: | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	1,550	5,442
Commercial mortgages | Commercial mortgages: | Loans Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	720,840	651,539
Home equity lines and loans | Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	790	1,159
Loans Past Due 90 Days or More and Still Accruing	0	0
Total recorded investment in loans	70,854	78,761
Home equity lines and loans | Consumer Loans | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	256	521
Home equity lines and loans | Consumer Loans | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	69	41
Home equity lines and loans | Consumer Loans | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	424	474
Home equity lines and loans | Consumer Loans | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	749	1,036
Home equity lines and loans | Consumer Loans | Loans Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	70,105	77,725
Indirect Consumer Loans | Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	462	519
Loans Past Due 90 Days or More and Still Accruing	0	0
Total recorded investment in loans	118,855	120,853
Indirect Consumer Loans | Consumer Loans | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	1,179	1,268
Indirect Consumer Loans | Consumer Loans | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	424	198
Indirect Consumer Loans | Consumer Loans | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	255	252
Indirect Consumer Loans | Consumer Loans | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	1,858	1,718
Indirect Consumer Loans | Consumer Loans | Loans Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	116,997	119,135
Direct consumer loans | Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	13	5
Loans Past Due 90 Days or More and Still Accruing	0	0
Total recorded investment in loans	9,868	12,474
Direct consumer loans | Consumer Loans | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	24	34
Direct consumer loans | Consumer Loans | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	11	2
Direct consumer loans | Consumer Loans | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	13	0
Direct consumer loans | Consumer Loans | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	48	36
Direct consumer loans | Consumer Loans | Loans Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	9,820	12,438
Commercial and industrial | Commercial, and Agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	1,932	2,167
Loans Past Due 90 Days or More and Still Accruing	4	2
Total recorded investment in loans	257,618	369,968
Commercial and industrial | Commercial, and Agricultural | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	413	520
Commercial and industrial | Commercial, and Agricultural | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	148	14
Commercial and industrial | Commercial, and Agricultural | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	26	30
Commercial and industrial | Commercial, and Agricultural | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	587	564
Commercial and industrial | Commercial, and Agricultural | Loans Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	257,031	369,404
Agricultural | Commercial, and Agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	395	284
Agricultural | Commercial, and Agricultural | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	0	0
Agricultural | Commercial, and Agricultural | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	0	0
Agricultural | Commercial, and Agricultural | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	0	0
Agricultural | Commercial, and Agricultural | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	0	0
Agricultural | Commercial, and Agricultural | Loans Not Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total recorded investment in loans	$ 395	$ 284

LOANS AND ALLOWANCE FOR LOAN _8

LOANS AND ALLOWANCE FOR LOAN LOSSES - Troubled Debt Restructurings Narrative (Details)	May 31, 2020	Dec. 31, 2021USD ($)instrumentborrowerloan	Dec. 31, 2020USD ($)loanborrower
Financing Receivable, Modifications [Line Items]
Financing Receivable, Loan Forebearances, Loan Balance | $		$ 242,500,000
Recorded investment in troubled debt restructurings | $		10,300,000	$ 6,700,000
Specific reserves allocated to troubled debt restructuring | $		1,900,000	400,000
Troubled debt restructurings accruing interest under modified terms | $		5,600,000	2,800,000
Troubled debt restructurings on non-accrual status | $		4,700,000	3,900,000
Additional amounts committed to customers with loans classified as troubled debt restructurings | $		$ 0	$ 0
Number of Loans		6	15
Increase in allowance for loan losses related to troubled debt restructurings | $		$ 1,700,000	$ 200,000
Charge offs | $		$ 0	$ 0
Number of days past due after which a loan is considered to be in payment default		90 days
Financing Receivable | Customer Concentration Risk | Chemung
Financing Receivable, Modifications [Line Items]
Concentration Risk, Percentage	15.77%
Extended Maturity | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Loans			2
Extended Maturity and Interest Rate Below Market Reduction | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Loans			1
Interest Rate Below Market Reduction | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Loans			2
Interest Rate Below Market Reduction | Commercial and industrial | Non-accrual Status
Financing Receivable, Modifications [Line Items]
Number of Loans			1
Payment Deferral
Financing Receivable, Modifications [Line Items]
Financing receivable, modifications, number of days past due			30 days
Residential Mortgage | Principal Forgiveness
Financing Receivable, Modifications [Line Items]
Number of Loans			1
Residential Mortgage | Payment Deferral
Financing Receivable, Modifications [Line Items]
Number of Loans			3
Residential Mortgage | Payment Deferral | Non-accrual Status
Financing Receivable, Modifications [Line Items]
Number of Loans			3
Residential Mortgage | Payment Deferral | Substandard | Non-accrual Status
Financing Receivable, Modifications [Line Items]
Number of Loans			2
Residential Mortgage | Payment Deferral | Substandard | Non-accrual Status | 30 - 59 Days Past Due
Financing Receivable, Modifications [Line Items]
Number of Loans			1
Commercial mortgages | Payment Deferral
Financing Receivable, Modifications [Line Items]
Number of Loans			4
Financing receivable, modifications, number of borrowers | borrower			3
Commercial mortgages | Payment Deferral | Substandard | Non-accrual Status
Financing Receivable, Modifications [Line Items]
Number of Loans			3
Commercial mortgages | Payment Deferral | Substandard | Non-accrual Status | 30 - 59 Days Past Due
Financing Receivable, Modifications [Line Items]
Number of Loans			2
Home equity lines and loans | Payment Deferral
Financing Receivable, Modifications [Line Items]
Number of Loans			3
Home equity lines and loans | Payment Deferral | Substandard | Non-accrual Status
Financing Receivable, Modifications [Line Items]
Number of Loans			3
Commercial And Consumer Portfolio Segment
Financing Receivable, Modifications [Line Items]
Financing receivable, number of loans remaining in modified status, modified more than once | borrower		0
Consumer Loans | Home equity lines and loans
Financing Receivable, Modifications [Line Items]
Number of Loans			3
Commercial, and Agricultural | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Loans		2	4
Commercial, and Agricultural | Commercial mortgages
Financing Receivable, Modifications [Line Items]
Number of Loans | instrument		4
Commercial, and Agricultural | Commercial And Industrial
Financing Receivable, Modifications [Line Items]
Number of Loans | instrument		2

LOANS AND ALLOWANCE FOR LOAN _9

LOANS AND ALLOWANCE FOR LOAN LOSSES - Troubled Debt Restructuring (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)instrumentloan	Dec. 31, 2020USD ($)instrumentloan
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	6	15
Pre-Modification Outstanding Recorded Investment	$ 6,596	$ 5,100
Post-Modification Outstanding Recorded Investment	6,596	$ 5,100
Number of Loans | instrument		1
Recorded Investment	$ 0	$ 170
Commercial, and Agricultural | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	2	4
Pre-Modification Outstanding Recorded Investment	$ 502	$ 2,068
Post-Modification Outstanding Recorded Investment	$ 502	$ 2,068
Commercial, and Agricultural | Commercial mortgages
Financing Receivable, Modifications [Line Items]
Number of Loans | instrument	4
Commercial Mortgages | Commercial mortgages
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	4	4
Pre-Modification Outstanding Recorded Investment	$ 6,094	$ 1,297
Post-Modification Outstanding Recorded Investment	$ 6,094	$ 1,297
Residential Mortgages
Financing Receivable, Modifications [Line Items]
Number of Loans | loan		4
Pre-Modification Outstanding Recorded Investment		$ 997
Post-Modification Outstanding Recorded Investment		$ 997
Consumer Loans | Home equity lines and loans
Financing Receivable, Modifications [Line Items]
Number of Loans | loan		3
Pre-Modification Outstanding Recorded Investment		$ 738
Post-Modification Outstanding Recorded Investment		$ 738
Number of Loans | instrument		1
Recorded Investment		$ 170

LOANS AND ALLOWANCE FOR LOAN_10

LOANS AND ALLOWANCE FOR LOAN LOSSES - Credit Quality Indicator (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	$ 1,522,382	$ 1,541,498
Loans	1,497,224	1,515,539
Not Rated
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	457,240	448,787
Pass
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	1,006,069	1,036,759
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	33,964	26,630
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	22,901	26,813
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	2,208	2,509
Commercial, and Agricultural
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	258,013	370,252
Commercial mortgages:
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	804,825	719,145
Commercial mortgages: | Construction
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	82,435	62,164
Commercial mortgages: | Commercial mortgages
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	722,390	656,981
Commercial mortgages: | Not Rated | Construction
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Commercial mortgages: | Not Rated | Commercial mortgages
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Commercial mortgages: | Pass | Construction
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	82,404	59,885
Commercial mortgages: | Pass | Commercial mortgages
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	672,741	616,090
Commercial mortgages: | Special Mention | Construction
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Commercial mortgages: | Special Mention | Commercial mortgages
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	31,072	23,631
Commercial mortgages: | Substandard | Construction
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	31	2,279
Commercial mortgages: | Substandard | Commercial mortgages
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	17,458	16,128
Commercial mortgages: | Doubtful | Construction
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Commercial mortgages: | Doubtful | Commercial mortgages
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	1,119	1,132
Residential Mortgages
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	259,967	240,013
Loans	259,967	240,013
Residential Mortgages | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	258,928	238,381
Residential Mortgages | Non-Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	1,039	1,632
Residential Mortgages | Not Rated
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	258,928	238,381
Residential Mortgages | Pass
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans		0
Residential Mortgages | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Residential Mortgages | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	1,039	1,632
Residential Mortgages | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	199,577	212,088
Consumer Loans | Home equity lines and loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	70,854	78,761
Loans	70,854	78,761
Consumer Loans | Home equity lines and loans | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	70,064	77,602
Consumer Loans | Home equity lines and loans | Non-Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	790	1,159
Consumer Loans | Indirect Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	118,855	120,853
Loans	118,855	120,853
Consumer Loans | Indirect Consumer Loans | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	118,393	120,334
Consumer Loans | Indirect Consumer Loans | Non-Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	462	519
Consumer Loans | Direct consumer loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	9,868	12,474
Loans	9,868	12,474
Consumer Loans | Direct consumer loans | Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	9,855	12,470
Consumer Loans | Direct consumer loans | Non-Performing
Financing Receivable, Recorded Investment [Line Items]
Loans	13	4
Consumer Loans | Not Rated | Home equity lines and loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	70,064	77,602
Consumer Loans | Not Rated | Indirect Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	118,393	120,334
Consumer Loans | Not Rated | Direct consumer loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	9,855	12,470
Consumer Loans | Pass | Home equity lines and loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Consumer Loans | Pass | Indirect Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Consumer Loans | Pass | Direct consumer loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Consumer Loans | Special Mention | Home equity lines and loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Consumer Loans | Special Mention | Indirect Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Consumer Loans | Special Mention | Direct consumer loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Consumer Loans | Substandard | Home equity lines and loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	790	1,159
Consumer Loans | Substandard | Indirect Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	462	519
Consumer Loans | Substandard | Direct consumer loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	13	4
Consumer Loans | Doubtful | Home equity lines and loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Consumer Loans | Doubtful | Indirect Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Consumer Loans | Doubtful | Direct consumer loans
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Commercial and industrial | Commercial, and Agricultural
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	257,618	369,968
Commercial and industrial | Commercial, and Agricultural | Not Rated
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Commercial and industrial | Commercial, and Agricultural | Pass
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	250,529	360,500
Commercial and industrial | Commercial, and Agricultural | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	2,892	2,999
Commercial and industrial | Commercial, and Agricultural | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	3,108	5,092
Commercial and industrial | Commercial, and Agricultural | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	1,089	1,377
Agricultural | Commercial, and Agricultural
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	395	284
Agricultural | Commercial, and Agricultural | Not Rated
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Agricultural | Commercial, and Agricultural | Pass
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	395	284
Agricultural | Commercial, and Agricultural | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Agricultural | Commercial, and Agricultural | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	0	0
Agricultural | Commercial, and Agricultural | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total recorded investment in loans	$ 0	$ 0

PREMISES AND EQUIPMENT - Premis

PREMISES AND EQUIPMENT - Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Premises and equipment [Abstract]
Premises and equipment, gross	$ 87,942	$ 89,293
Less accumulated depreciation and amortization	69,973	69,174
Net book value	17,969	20,119
Depreciation expense	2,501	2,918
Land
Premises and equipment [Abstract]
Premises and equipment, gross	4,710	4,803
Buildings
Premises and equipment [Abstract]
Premises and equipment, gross	40,726	41,957
Projects in progress
Premises and equipment [Abstract]
Premises and equipment, gross	5	65
Equipment and furniture
Premises and equipment [Abstract]
Premises and equipment, gross	37,183	37,183
Leasehold improvements
Premises and equipment [Abstract]
Premises and equipment, gross	$ 5,318	$ 5,285

PREMISES AND EQUIPMENT - Leases

PREMISES AND EQUIPMENT - Leases in Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Buildings	$ 5,572	$ 5,572
Less: accumulated depreciation	(2,208)	(1,875)
Net book value	$ 3,364	$ 3,697

LEASES - Narrative (Details)

LEASES - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease, weighted average remaining lease term (years)	9 years 6 months
Operating lease, weighted average discount rate	3.33%
Rent expense	$ 1,000,000	$ 1,000,000
Increase in operating lease liability	800,000
Operating lease not yet commenced	$ 0
Finance lease, weighted average remaining lease term (years)	11 years 1 month 6 days
Finance lease, weighted average discount rate	3.37%
Finance lease not yet commenced	$ 0

LEASES - Leased Branch Properti

LEASES - Leased Branch Properties (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease right-of-use asset	$ 7,145	$ 8,001
Less: accumulated amortization	(759)	(705)
Less: lease termination	(313)	(151)
Add: new lease agreement and modifications	1,161	0
Operating lease right-of-use-assets, net	$ 7,234	$ 7,145

LEASES - Maturities of Operatin

LEASES - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
2022	$ 979
2023	992
2024	924
2025	841
2026	845
2027 and thereafter	4,021
Total minimum lease payments	8,602
Less: amount representing interest	(1,224)
Present value of net minimum lease payments	$ 7,378	$ 7,264

LEASES - Future Minimum Lease P

LEASES - Future Minimum Lease Payment Obligations Under Capital Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
2022	$ 391
2023	391
2024	391
2025	409
2026	425
2027 and thereafter	2,415
Total minimum lease payments	4,422
Less: amount representing interest	(828)
Present value of net minimum lease payments	$ 3,594	$ 3,849

GOODWILL AND INTANGIBLE ASSET_2

GOODWILL AND INTANGIBLE ASSETS - Changes in Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Beginning of year	$ 21,824	$ 21,824
Acquired goodwill	0	0
End of year	$ 21,824	$ 21,824

GOODWILL AND INTANGIBLE ASSET_3

GOODWILL AND INTANGIBLE ASSETS - Acquired intangible assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Balance Acquired	$ 11,608	$ 11,608
Accumulated Amortization	11,593	11,350
Core deposit intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Balance Acquired	5,975	5,975
Accumulated Amortization	5,974	5,962
Other customer relationship intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Balance Acquired	5,633	5,633
Accumulated Amortization	$ 5,619	$ 5,388

GOODWILL AND INTANGIBLE ASSET_4

GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 243	$ 484

GOODWILL AND INTANGIBLE ASSET_5

GOODWILL AND INTANGIBLE ASSETS - Amortization Expense (Details) $ in Thousands	Dec. 31, 2021USD ($)
Estimated Expense
2022	$ 15
Total	$ 15

DEPOSITS (Details)

DEPOSITS (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Summary of deposits [Abstract]
Non-interest-bearing demand deposits	$ 739,607	$ 620,423
Interest-bearing demand deposits	284,721	282,172
Insured money market accounts	654,553	603,583
Savings deposits	280,195	245,865
Time deposits	196,357	285,731
Total deposits	2,155,433	2,037,774
Scheduled maturities of time deposits [Abstract]
2022	165,290
2023	16,067
2024	10,695
2025	876
2026	226
2027	3,203
Total	196,357	285,731
Time Deposits 250,000, Or More	$ 28,800	$ 31,200

FEDERAL HOME LOAN BANK TERM A_3

FEDERAL HOME LOAN BANK TERM ADVANCES AND OVERNIGHT ADVANCES - Narrative (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Federal Home Loan Bank, Advances, Maturity Periods [Line Items]
FHLBNY overnight advances	$ 14,570,000	$ 0
Maximum amount eligible to borrow	161,000,000
Residential Mortgages
Federal Home Loan Bank, Advances, Maturity Periods [Line Items]
Loans pledged as collateral	$ 204,200,000	$ 101,900,000

FEDERAL HOME LOAN BANK TERM A_4

FEDERAL HOME LOAN BANK TERM ADVANCES AND OVERNIGHT ADVANCES (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Advances from Federal Home Loan Banks [Abstract]
FHLBNY overnight advances	$ 14,570,000	$ 0
FHLBNY interest rate	0.34%

REVENUE FROM CONTRACTS WITH C_3

REVENUE FROM CONTRACTS WITH CUSTOMERS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Net gains (losses) on sales of OREO	$ (16)	$ (79)
Change in fair value of equity securities	246	89
Income from bank owned life insurance	52	161
Total non-interest income	23,870	21,124
Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Total non-interest income	1,058	650
Overdraft fees
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	2,266	2,304
Other
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	948	830
Interchange revenue from debit card transactions
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	4,844	4,068
WMG fee income
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	11,072	9,492
CFS fee and commission income
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	1,043	657
Net gains (losses) on sales of OREO
Disaggregation of Revenue [Line Items]
Net gains (losses) on sales of OREO	(16)	(79)
Net gains on sales of loans
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	1,073	1,730
Loan servicing fees
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	148	121
Income from bank-owned life insurance
Disaggregation of Revenue [Line Items]
Income from bank owned life insurance	52	161
Other
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	2,194	1,751
Core Banking | Operating Segments
Disaggregation of Revenue [Line Items]
Change in fair value of equity securities	161	139
Total non-interest income	11,740	10,982
Core Banking | Overdraft fees | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	2,266	2,304
Core Banking | Other | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	948	830
Core Banking | Interchange revenue from debit card transactions | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	4,844	4,068
Core Banking | WMG fee income | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	0	0
Core Banking | CFS fee and commission income | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	0	0
Core Banking | Net gains (losses) on sales of OREO | Operating Segments
Disaggregation of Revenue [Line Items]
Net gains (losses) on sales of OREO	(16)	(79)
Core Banking | Net gains on sales of loans | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	1,073	1,730
Core Banking | Loan servicing fees | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	148	121
Core Banking | Income from bank-owned life insurance | Operating Segments
Disaggregation of Revenue [Line Items]
Income from bank owned life insurance	52	161
Core Banking | Other | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	2,264	1,708
WMG | Operating Segments
Disaggregation of Revenue [Line Items]
Change in fair value of equity securities	0	0
Total non-interest income	11,072	9,492
WMG | Overdraft fees | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	0	0
WMG | Other | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	0	0
WMG | Interchange revenue from debit card transactions | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	0	0
WMG | WMG fee income | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	11,072	9,492
WMG | CFS fee and commission income | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	0	0
WMG | Net gains (losses) on sales of OREO | Operating Segments
Disaggregation of Revenue [Line Items]
Net gains (losses) on sales of OREO	0	0
WMG | Net gains on sales of loans | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	0	0
WMG | Loan servicing fees | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	0	0
WMG | Income from bank-owned life insurance | Operating Segments
Disaggregation of Revenue [Line Items]
Income from bank owned life insurance		0
WMG | Other | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	0	0
Holding Company, CFS, and CRM | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Change in fair value of equity securities	85	(50)
Total non-interest income	1,058	650
Holding Company, CFS, and CRM | Overdraft fees | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	0	0
Holding Company, CFS, and CRM | Other | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	0	0
Holding Company, CFS, and CRM | Interchange revenue from debit card transactions | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	0	0
Holding Company, CFS, and CRM | WMG fee income | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	0	0
Holding Company, CFS, and CRM | CFS fee and commission income | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenues from contracts with customer	1,043	657
Holding Company, CFS, and CRM | Net gains (losses) on sales of OREO | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Net gains (losses) on sales of OREO	0	0
Holding Company, CFS, and CRM | Net gains on sales of loans | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	0	0
Holding Company, CFS, and CRM | Loan servicing fees | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	0	0
Holding Company, CFS, and CRM | Income from bank-owned life insurance | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Income from bank owned life insurance	0	0
Holding Company, CFS, and CRM | Other | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	$ (70)	$ 43

DERIVATIVES - Narrative (Detail

DERIVATIVES - Narrative (Details) - Derivatives not designated as hedging instruments: - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Notional amount	$ 490,012	$ 377,010
Swap
Derivative [Line Items]
Notional amount	471,500
Interest rate swap agreements on loans with commercial loan customers
Derivative [Line Items]
Notional amount	235,730	179,085
Interest rate swap agreements with third-party counter-parties
Derivative [Line Items]
Notional amount	235,730	179,085
Risk participation agreements
Derivative [Line Items]
Notional amount	18,552	18,840
Off-balance sheet risk	$ 500	$ 400

DERIVATIVES - Derivative Financ

DERIVATIVES - Derivative Financial Instruments (Details) - Derivatives not designated as hedging instruments: $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)instrument	Dec. 31, 2020USD ($)instrument
Derivative [Line Items]
Number of Instruments | instrument	74	56
Notional Amount	$ 490,012	$ 377,010
Fair Value Other Assets/ (Other Liabilities)	(228)	(357)
Unrealized gain (loss) recognized in other non-interest income	$ 129	$ 8
Interest rate swap agreements on loans with commercial loan customers
Derivative [Line Items]
Number of Instruments | instrument	35	26
Notional Amount	$ 235,730	$ 179,085
Weighted Average Maturity (in years)	7 years 8 months 12 days	7 years 8 months 12 days
Fair Value Other Assets/ (Other Liabilities)	$ (9,711)	$ (15,024)
Unrealized gain (loss) recognized in other non-interest income	$ 5,313	$ (8,224)
Interest rate swap agreements on loans with commercial loan customers | Weighted Average Interest Rate Received
Derivative [Line Items]
Average interest rate	3.83%	3.95%
Interest rate swap agreements on loans with commercial loan customers | Weighted Average Contract Pay Rate
Derivative [Line Items]
Average interest rate	2.14%	2.20%
Interest rate swap agreements with third-party counter-parties
Derivative [Line Items]
Number of Instruments | instrument	35	26
Notional Amount	$ 235,730	$ 179,085
Weighted Average Maturity (in years)	7 years 8 months 12 days	7 years 8 months 12 days
Fair Value Other Assets/ (Other Liabilities)	$ 9,498	$ 14,702
Unrealized gain (loss) recognized in other non-interest income	$ (5,204)	$ 8,236
Interest rate swap agreements with third-party counter-parties | Weighted Average Interest Rate Received
Derivative [Line Items]
Average interest rate	2.14%	2.20%
Interest rate swap agreements with third-party counter-parties | Weighted Average Contract Pay Rate
Derivative [Line Items]
Average interest rate	3.83%	3.95%
Risk participation agreements
Derivative [Line Items]
Number of Instruments | instrument	4	4
Notional Amount	$ 18,552	$ 18,840
Weighted Average Maturity (in years)	2 years 2 months 12 days	2 years 9 months 18 days
Fair Value Other Assets/ (Other Liabilities)	$ (15)	$ (35)
Unrealized gain (loss) recognized in other non-interest income	$ 20	$ (4)

INCOME TAXES - Components of Ta

INCOME TAXES - Components of Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Current expense:
Federal	$ 5,732	$ 4,413
State	1,033	280
Total current	6,765	4,693
Deferred expense/(benefit):
Federal	527	(136)
State	43	50
Total deferred	570	(86)
Income tax expense	$ 7,335	$ 4,607

INCOME TAXES - Reconciliation o

INCOME TAXES - Reconciliation of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of income tax expense [Abstract]
Statutory federal tax rate	21.00%	21.00%
Tax computed at statutory rate	$ 7,090	$ 5,013
Tax-exempt income	(380)	(395)
831(b) premium adjustment	(291)	(296)
Dividend exclusion	(8)	(5)
State taxes, net of Federal impact	803	118
Nondeductible interest expense	4	5
Other items, net	117	167
Income tax expense	$ 7,335	$ 4,607
Effective tax rate	21.70%	19.30%

INCOME TAXES - Deferred Tax Ass

INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Allowance for loan losses	$ 5,546	$ 5,393
Accrual for employee benefit plans	0	47
Depreciation	979	681
Deferred compensation and directors' fees	1,130	1,045
Operating lease liabilities	1,976	1,831
Purchase accounting adjustment – loans	0	1
Purchase accounting adjustment – fixed assets	153	149
Gain on deemed sale of securities	0	54
Net unrealized losses on securities available for sale	886	0
Accounting for defined benefit pension and other benefit plans	1,347	2,302
Nonaccrued interest	473	687
Accrued expense	139	158
Other items, net	127	48
Total gross deferred tax assets	12,756	12,396
Deferred tax liabilities:
Deferred loan fees and costs	355	274
Prepaid pension	3,715	3,344
Net unrealized gains on securities available for sale	0	3,124
Discount accretion	78	50
Core deposit intangible	1,556	1,353
REIT dividend	608	616
Operating lease right-of-use assets	1,976	1,831
Accrual for employee benefit plans	3	0
Other	344	168
Total gross deferred tax liabilities	8,635	10,760
Net deferred tax asset	$ 4,121	$ 1,636

INCOME TAXES - Narrative (Detai

INCOME TAXES - Narrative (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 0	$ 0
Accrued interest or penalties related to uncertain tax positions	$ 0	$ 0

PENSION PLAN AND OTHER BENEFI_3

PENSION PLAN AND OTHER BENEFIT PLANS - Additional Information (Details) - USD ($) $ in Thousands	Jan. 01, 2022	Jan. 01, 2021	Oct. 20, 2016	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Hours requirement to be eligible			1000 hours
Percentage decrease in unrecognized net loss of the projected benefit obligation				0.31
Defined Contribution Profit Sharing, Savings and Investment Plan
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, employer non-discretionary contribution amount				3.00%
Contribution cost percentage				50.00%
Defined contribution plan, employer matching contribution, percent of employees' gross pay				6.00%
Total expense				$ 1,300	$ 1,300
Chemung common stock included in defined contribution plan assets (in shares)				118,081	137,698
Defined Contribution Supplemental Executive Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Total expense				$ 400	$ 400
Balance in the plan				2,400	2,000
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation				40,400	42,800
Actuarial gain (loss), increase (decrease) due to change in discount rate				$ (1,300)
Percentage of combined loss of expected year end obligations (less than)				0.01
Other comprehensive income, defined benefit plans, decrease in net unamortized gain loss arising during period net of tax				$ 3,800
Other comprehensive income, defined benefit plans, increase (decrease) in net unamortized gain loss arising during period net of tax, due to variance of actual and expected return on plan assets				$ 2,300
Total unrecognized net loss increased percentage of obligation amortization threshold				10.00%
Total unrecognized net loss increased (decreased) percentage of plan assets threshold				10.00%
Average total life expectancy of participants (years)		23 years 25 days
Pension Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Evaluation period of expected long-term return on plan assets				3 years
Pension Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Evaluation period of expected long-term return on plan assets				5 years
Other Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Other comprehensive income, defined benefit plans, decrease in net unamortized gain loss arising during period net of tax				$ 79
Contribution cost percentage				50.00%
Decrease in accumulated benefit obligation due to change in discount rate				$ 4
Decrease in accumulated benefit obligation due to discount Rate, claims and date experience				31
Average future working lifetime of active participants		6 years
Estimated employer contributions in next fiscal year				(33)
Executive Supplemental Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation				1,200	$ 1,300
Actuarial gain (loss), increase (decrease) due to change in discount rate				$ 24
Percentage of combined loss of expected year end obligations (less than)				0.01
Total unrecognized net loss increased percentage of obligation amortization threshold				10.00%
Total unrecognized net loss increased (decreased) percentage of plan assets threshold				10.00%
Percentage decrease in unrecognized net loss of the projected benefit obligation				0.016
Estimated employer contributions in next fiscal year				$ (110)
Actuarial gain (loss), decrease due to change in mortality losses				26
Defined benefit plan, decrease in total unrecognized net loss				$ 20
Executive Supplemental Pension Plan | Subsequent Event
Defined Benefit Plan Disclosure [Line Items]
Average total life expectancy of participants (years)	11 years 4 months 20 days

PENSION PLAN AND OTHER BENEFI_4

PENSION PLAN AND OTHER BENEFIT PLANS - Changes in Projected Benefit Obligation and Plan Assets, and Funded Status (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Pension Plan
Change in projected benefit obligation:
Benefit obligation at beginning of year	$ 42,781	$ 39,886
Service cost	0	0
Interest cost	1,084	1,300
Actuarial (gain) loss	(1,300)	3,735
Curtailments	0	0
Settlements	0	0
Benefits paid	(2,161)	(2,140)
Benefit obligation at end of year	40,404	42,781
Change in plan assets:
Fair value of plan assets at beginning of year	50,134	45,557
Actual return on plan assets	5,014	6,717
Employer contributions	0	0
Settlements	0	0
Benefits paid	(2,161)	(2,140)
Fair value of plan assets at end of year	52,987	50,134
Funded status of plan	12,583	7,353
Defined Benefit Health Care Plan
Change in projected benefit obligation:
Benefit obligation at beginning of year	249	332
Service cost	0	0
Interest cost	6	9
Participant contributions	20	35
Amendments	0	0
Actuarial (gain) loss	(37)	(57)
Benefits paid	(44)	(70)
Benefit obligation at end of year	194	249
Change in plan assets:
Fair value of plan assets at beginning of year	0	0
Employer contributions	24	35
Participant contributions	20	35
Benefits paid	(44)	(70)
Fair value of plan assets at end of year	0	0
Funded status of plan	(194)	(249)
Executive Supplemental Pension Plan
Change in projected benefit obligation:
Benefit obligation at beginning of year	1,251	1,232
Service cost	0	0
Interest cost	31	39
Actuarial (gain) loss	0	89
Benefits paid	(109)	(109)
Benefit obligation at end of year	1,173	1,251
Change in plan assets:
Fair value of plan assets at beginning of year	0	0
Employer contributions	109	109
Benefits paid	(109)	(109)
Fair value of plan assets at end of year	0	0
Funded status of plan	$ (1,173)	$ (1,251)

PENSION PLAN AND OTHER BENEFI_5

PENSION PLAN AND OTHER BENEFIT PLANS - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	$ 4,833	$ 8,602
Prior service cost	0	0
Total before tax effects	4,833	8,602
Defined Benefit Health Care Plan
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	208	286
Prior service cost	0	(220)
Total before tax effects	208	66
Executive Supplemental Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	339	359
Prior service cost	0	0
Total before tax effects	$ 339	$ 359

PENSION PLAN AND OTHER BENEFI_6

PENSION PLAN AND OTHER BENEFIT PLANS - Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0
Interest cost	1,084	1,300
Expected return on plan assets	(2,696)	(2,444)
Recognized actuarial loss	151	213
Amortization of  prior service cost	0	0
Recognized (gain) loss due to settlements	0	0
Net periodic cost (benefit)	(1,461)	(931)
Other Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	6	9
Expected return on plan assets	0	0
Recognized actuarial loss	42	74
Amortization of  prior service cost	(220)	(220)
Recognized prior service benefit due to curtailments	0	0
Net periodic cost (benefit)	(172)	(137)
Executive Supplemental Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	31	39
Recognized actuarial loss	19	13
Net periodic cost (benefit)	$ 50	$ 52

PENSION PLAN AND OTHER BENEFI_7

PENSION PLAN AND OTHER BENEFIT PLANS - Other Changes In Plan Assets And Benefit Obligations Recognized In Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (gain) loss	$ 3,655	$ 506
Recognized actuarial loss	212	300
Prior service credit	0	0
Reclassification adjustment for amortization of prior service benefit	(220)	(220)
Total before tax effect	3,647	586
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (gain) loss	(3,618)	(538)
Recognized actuarial loss	(151)	(213)
Reclassification adjustment for amortization of prior service benefit	0	0
Total before tax effect	(3,769)	(751)
Total recognized in net (benefit) cost and other comprehensive income (loss) (before tax effect)	(5,230)	(1,682)
Other Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (gain) loss	(37)	(57)
Recognized actuarial loss	(42)	(74)
Prior service credit	0	0
Reclassification adjustment for amortization of prior service benefit	220	220
Total before tax effect	141	89
Total recognized in net (benefit) cost and other comprehensive income (loss) (before tax effect)	(31)	(48)
Executive Supplemental Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (gain) loss	0	89
Recognized actuarial loss	(19)	(13)
Total before tax effect	(19)	76
Total recognized in net (benefit) cost and other comprehensive income (loss) (before tax effect)	$ 31	$ 128

PENSION PLAN AND OTHER BENEFI_8

PENSION PLAN AND OTHER BENEFIT PLANS - Weighted-average Assumptions For Net Periodic Cost (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.61%	3.33%
Expected return on assets	5.50%	5.50%
Discount rate	2.87%	2.61%
Other Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.61%	3.33%
Discount rate	2.87%	2.61%
Other Postretirement Benefit Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed, next fiscal year	6.95%	6.95%
Health care cost trend: Initial	6.95%	6.95%
Health care cost trend: Ultimate (Pre-65/Post 65)	4.75%	4.75%
Other Postretirement Benefit Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed, next fiscal year	5.45%	5.45%
Health care cost trend: Initial	5.45%	5.45%
Health care cost trend: Ultimate (Pre-65/Post 65)	4.75%	4.75%
Executive Supplemental Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.61%	3.33%
Discount rate	2.87%	2.61%

PENSION PLAN AND OTHER BENEFI_9

PENSION PLAN AND OTHER BENEFIT PLANS - Target Allocations Of Plan Assets (Details) - Pension Plan	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (in hundredths)	100.00%	100.00%
Expected return on assets	5.50%	5.50%
Large cap domestic equities
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (in hundredths)	42.00%	43.00%
Expected return on assets	10.10%
Mid-cap domestic equities
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (in hundredths)	0.00%	2.00%
Expected return on assets	10.50%
Small-cap domestic equities
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (in hundredths)	5.00%	3.00%
Expected return on assets	9.00%
International equities
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (in hundredths)	4.00%	3.00%
Expected return on assets	11.10%
Intermediate fixed income
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (in hundredths)	45.00%	45.00%
Expected return on assets	4.20%
Alternative assets
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (in hundredths)	0.00%	0.00%
Expected return on assets	0.00%
Cash
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (in hundredths)	4.00%	4.00%
Expected return on assets	1.10%
Minimum | Large cap domestic equities
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	20.00%
Minimum | Mid-cap domestic equities
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	0.00%
Minimum | Small-cap domestic equities
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	0.00%
Minimum | International equities
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	0.00%
Minimum | Intermediate fixed income
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	30.00%
Minimum | Alternative assets
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	0.00%
Minimum | Cash
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	0.00%
Maximum | Large cap domestic equities
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	50.00%
Maximum | Mid-cap domestic equities
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	15.00%
Maximum | Small-cap domestic equities
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	10.00%
Maximum | International equities
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	20.00%
Maximum | Intermediate fixed income
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	70.00%
Maximum | Alternative assets
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	10.00%
Maximum | Cash
Defined Benefit Plan Disclosure [Line Items]
Target allocation, minimum (in hundredths)	20.00%

PENSION PLAN AND OTHER BENEF_10

PENSION PLAN AND OTHER BENEFIT PLANS - Fair Value Plan Assets By Asset Class (Details) - Pension Plan - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 52,987	$ 50,134	$ 45,557
Carrying Amount
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	52,987	50,134
Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	52,987	50,134
Fair Value | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Cash | Carrying Amount
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,270	2,047
Cash | Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,270	2,047
Cash | Fair Value | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Cash | Fair Value | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity Securities - U.S. Companies | Carrying Amount
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	21,927	21,716
Equity Securities - U.S. Companies | Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	21,927	21,716
Equity Securities - U.S. Companies | Fair Value | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity Securities - U.S. Companies | Fair Value | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Mutual funds | Carrying Amount
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	26,345	23,778
Mutual funds | Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	26,345	23,778
Mutual funds | Fair Value | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Mutual funds | Fair Value | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. Treasuries/Government bonds | Carrying Amount
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,181	2,318
U.S. Treasuries/Government bonds | Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,181	2,318
U.S. Treasuries/Government bonds | Fair Value | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. Treasuries/Government bonds | Fair Value | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. Corporate bonds | Carrying Amount
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	264	275
U.S. Corporate bonds | Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	264	275
U.S. Corporate bonds | Fair Value | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. Corporate bonds | Fair Value | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0

PENSION PLAN AND OTHER BENEF_11

PENSION PLAN AND OTHER BENEFIT PLANS - Estimated Benefit Payments (Details) $ in Thousands	Dec. 31, 2021USD ($)
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
2022	$ 2,295
2023	2,329
2024	2,336
2025	2,328
2026	2,326
2027-2031	11,344
Other Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
2022	33
2023	35
2024	19
2025	18
2026	17
2027-2031	64
Executive Supplemental Pension Plan
Defined Benefit Plan Disclosure [Line Items]
2022	108
2023	106
2024	103
2025	99
2026	95
2027-2031	$ 403

STOCK COMPENSATION - Narrative

STOCK COMPENSATION - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Restricted Stock
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Total unrecognized compensation cost related to nonvested shares granted under the plan			$ 1,500
Weighted-average period for recognition (in years)			4 years 2 months 23 days
Total fair value of shares vested			$ 620	$ 556
Directors and President and Chief Executive Officer
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of treasury shares reissued to fund stock compensation (in shares)		9,291
Vesting period			1 year
Expense related to stock compensation recognized				$ 318
Directors and President and Chief Executive Officer | Subsequent Event
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of treasury shares reissued to fund stock compensation (in shares)	9,190
2021 Equity Incentive Plan
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of shares authorized (in shares)			170,000
Trading days period			30 days

STOCK COMPENSATION - Restricted

STOCK COMPENSATION - Restricted Stock Plan (Details) - Restricted Stock	12 Months Ended
	Dec. 31, 2021$ / sharesshares
Shares
Nonvested, beginning of period (in shares) | shares	31,830
Granted (in shares) | shares	20,763
Vested (in shares) | shares	(14,756)
Forfeited or cancelled (in shares) | shares	0
Nonvested, end of period (in shares) | shares	37,837
Weighted–Average Grant Date Fair Value
Nonvested, beginning of period (in dollars per share) | $ / shares	$ 40.32
Granted (in dollars per share) | $ / shares	46.36
Vested (in dollars per share) | $ / shares	41.98
Forfeitures or cancelled (in dollars per share) | $ / shares	0
Nonvested, end of period (in dollars per share) | $ / shares	$ 42.99

RELATED PARTY TRANSACTIONS - Na

RELATED PARTY TRANSACTIONS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Related Party Transactions [Line Items]
Deposit liabilities	$ 46,700	$ 39,500
Rent expense	1,000	1,000
Fee income	58,861	59,089
Management | WMG | Operating Segments | Trust Services
Related Party Transactions [Line Items]
Fee income	726	614
1365 New Scotland Road, Slingerlands, New York | Director
Related Party Transactions [Line Items]
Monthly rent expense	4
Rent expense	50	51
2 Rush Street, Schenectady, New York | Director
Related Party Transactions [Line Items]
Monthly rent expense	8
Rent expense	$ 101	$ 106
Minimum
Related Party Transactions [Line Items]
Related party principal ownership threshold (in hundredths)	10.00%

RELATED PARTY TRANSACTIONS - Re

RELATED PARTY TRANSACTIONS - Related Party Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Loans to Related Parties [Roll Forward]
Balance at beginning of year	$ 56,052	$ 59,973
New loans or additional advances	2,642	7,461
Effect of changes in composition of related parties	(122)	0
Repayments	(7,380)	(11,382)
Balance at end of year	$ 51,192	$ 56,052

COMMITMENTS AND CONTINGENCIES -

COMMITMENTS AND CONTINGENCIES - Off-Balance Sheet Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fixed Rate | Commitments to make loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts of financial instruments with off-balance sheet risk	$ 20,772	$ 28,459
Fixed Rate | Unused lines of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts of financial instruments with off-balance sheet risk	4,745	1,300
Fixed Rate | Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts of financial instruments with off-balance sheet risk	0	0
Variable Rate | Commitments to make loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts of financial instruments with off-balance sheet risk	46,558	39,056
Variable Rate | Unused lines of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts of financial instruments with off-balance sheet risk	288,368	268,075
Variable Rate | Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contractual amounts of financial instruments with off-balance sheet risk	$ 7,974	$ 16,094

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contingent obligations	$ 8
Minimum
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments period to make fixed-rate commercial draw notes (months)	3 months
Minimum | Fixed Rate
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Interest rate on fixed-rate commitments to make loans	2.63%
Maturity period of fixed-rate commitments to make loans (years)	3 years
Interest rate on fixed-rate commitments to make commercial draw notes (in hundredths)	1.00%
Maximum
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments period to make real estate and home equity loans (days)	60 days
Commitments period to make fixed-rate commercial draw notes (months)	24 months
Off-balance sheet financial instruments, standard term	12 months
Maximum | Fixed Rate
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Interest rate on fixed-rate commitments to make loans	5.50%
Maturity period of fixed-rate commitments to make loans (years)	30 years
Interest rate on fixed-rate commitments to make commercial draw notes (in hundredths)	7.38%

PARENT COMPANY FINANCIAL INFO_3

PARENT COMPANY FINANCIAL INFORMATION - BALANCE SHEETS (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets:
Cash on deposit with subsidiary bank	$ 17,365	$ 29,467
Securities available for sale, at estimated fair value	792,026	554,611
Total assets	2,418,475	2,279,451
Liabilities and shareholders' equity:
Dividends payable	1,450	1,214
Total liabilities	2,207,020	2,079,752
Shareholders' equity:
Total shareholders' equity	211,455	199,699	$ 182,627
Total liabilities and shareholders' equity	2,418,475	2,279,451
Parent Company
Assets:
Cash on deposit with subsidiary bank	2,473	2,243
Dividends receivable from subsidiary bank	1,450	1,214
Securities available for sale, at estimated fair value	391	377
Other assets	1,517	1,420
Total assets	212,939	201,057
Liabilities and shareholders' equity:
Dividends payable	1,450	1,214
Other liabilities	34	144
Total liabilities	1,484	1,358
Shareholders' equity:
Total shareholders' equity	211,455	199,699
Total liabilities and shareholders' equity	212,939	201,057
Parent Company | Chemung Canal Trust Company
Assets:
Investment in subsidiary	203,373	192,364
Parent Company | CFS Group Inc.
Assets:
Investment in subsidiary	1,074	876
Parent Company | Chemung Risk Management
Assets:
Investment in subsidiary	$ 2,661	$ 2,563

PARENT COMPANY FINANCIAL INFO_4

PARENT COMPANY FINANCIAL INFORMATION - STATEMENTS OF INCOME (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
STATEMENTS OF INCOME [Abstract]
Income before income tax expense	$ 33,760	$ 23,869
Income tax benefit	7,335	4,607
Net income	26,425	19,262
Parent Company
STATEMENTS OF INCOME [Abstract]
Dividends from subsidiary bank and non-bank	6,854	10,806
Interest and dividend income	4	5
Non-interest income	85	(50)
Non-interest expenses	432	503
Income before impact of subsidiaries' undistributed earnings	6,511	10,258
Income before income tax expense	26,299	19,080
Income tax benefit	(126)	(182)
Net income	26,425	19,262
Parent Company | Chemung Canal Trust Company
STATEMENTS OF INCOME [Abstract]
Income (loss) from equity method investments	19,492	8,204
Parent Company | CFS Group Inc.
STATEMENTS OF INCOME [Abstract]
Income (loss) from equity method investments	198	8
Parent Company | Chemung Risk Management
STATEMENTS OF INCOME [Abstract]
Income (loss) from equity method investments	$ 98	$ 610

PARENT COMPANY FINANCIAL INFO_5

PARENT COMPANY FINANCIAL INFORMATION - STATEMENTS OF CASH FLOWS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income	$ 26,425	$ 19,262
Adjustments to reconcile net income to net cash provided by operating activities:
Change in other assets	(1,954)	(9,883)
Change in other liabilities	2,764	8,265
Net cash provided by operating activities	35,461	28,659
Cash flow from financing activities:
Cash dividends paid	(5,318)	(5,006)
Purchase of treasury stock	(1,616)	(7,589)
Sale of treasury stock	426	1,018
Net cash (used in) provided by financing activities	125,466	453,823
Cash and cash equivalents, beginning of period	108,538
Cash and cash equivalents, end of period	26,981	108,538
Parent Company
Cash flows from operating activities:
Net income	26,425	19,262
Adjustments to reconcile net income to net cash provided by operating activities:
Change in dividend receivable	(236)	(1,214)
Change in other assets	(97)	(154)
Change in other liabilities	(252)	8
Expense related to employee stock compensation	132	101
Expense related to restricted stock units for directors' deferred compensation plan	19	29
Expense to employee restricted stock awards	535	672
Net cash provided by operating activities	6,738	9,882
Cash flow from financing activities:
Cash dividends paid	(5,318)	(5,006)
Purchase of treasury stock	(1,616)	(7,589)
Sale of treasury stock	426	1,018
Net cash (used in) provided by financing activities	(6,508)	(11,577)
Increase (decrease) in cash and cash equivalents	230	(1,695)
Cash and cash equivalents, beginning of period	2,243	3,938
Cash and cash equivalents, end of period	2,473	2,243
Parent Company | Chemung Canal Trust Company
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed earnings	(19,492)	(8,204)
Parent Company | CFS Group Inc.
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed earnings	(198)	(8)
Parent Company | Chemung Risk Management
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed earnings	$ (98)	$ (610)

FAIR VALUES (Details)

FAIR VALUES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financial Assets [Abstract]
Total	$ 792,026	$ 554,611
Provision for loan losses	(17)	(4,239)
Recurring
Financial Assets [Abstract]
U.S. treasury notes and bonds	60,431
Mortgage-backed securities, residential	577,361	467,866
Obligations of states and political subdivisions	42,303	43,405
Corporate bonds and notes	22,848	9,035
SBA loan pools	89,083	34,305
Total	792,026	554,611
Equity Investments	2,404	1,880
Derivative assets	9,498	14,702
Derivative liabilities	9,726	15,059
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets [Abstract]
U.S. treasury notes and bonds	60,431
Mortgage-backed securities, residential	0	0
Obligations of states and political subdivisions	0	0
Corporate bonds and notes	0	0
SBA loan pools	0	0
Total	60,431	0
Equity Investments	2,404	1,880
Derivative assets	0	0
Derivative liabilities	0	0
Recurring | Significant Other Observable Inputs (Level 2)
Financial Assets [Abstract]
U.S. treasury notes and bonds	0
Mortgage-backed securities, residential	577,361	467,866
Obligations of states and political subdivisions	42,303	43,405
Corporate bonds and notes	22,848	9,035
SBA loan pools	89,083	34,305
Total	731,595	554,611
Equity Investments	0	0
Derivative assets	9,498	14,702
Derivative liabilities	9,726	15,059
Recurring | Significant Unobservable Inputs (Level 3)
Financial Assets [Abstract]
U.S. treasury notes and bonds	0
Mortgage-backed securities, residential	0	0
Obligations of states and political subdivisions	0	0
Corporate bonds and notes	0	0
SBA loan pools	0	0
Total	0	0
Equity Investments	0	0
Derivative assets	0	0
Derivative liabilities	0	0
Non-recurring | Other Real Estate Owned
Financial Assets [Abstract]
Other real estate, foreclosed assets, and repossessed assets	143	237
Provision for loan losses	0	0
Non-recurring | Commercial mortgages | Other Real Estate Owned
Financial Assets [Abstract]
Total impaired loans/ other real estate owned, net		111
Provision for loan losses		0
Non-recurring | Residential Mortgages | Other Real Estate Owned
Financial Assets [Abstract]
Other real estate, foreclosed assets, and repossessed assets	143	126
Provision for loan losses	0	0
Non-recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Real Estate Owned
Financial Assets [Abstract]
Other real estate, foreclosed assets, and repossessed assets	0	0
Non-recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial mortgages | Other Real Estate Owned
Financial Assets [Abstract]
Total impaired loans/ other real estate owned, net		0
Non-recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential Mortgages | Other Real Estate Owned
Financial Assets [Abstract]
Other real estate, foreclosed assets, and repossessed assets	0	0
Non-recurring | Significant Other Observable Inputs (Level 2) | Other Real Estate Owned
Financial Assets [Abstract]
Other real estate, foreclosed assets, and repossessed assets	0	0
Non-recurring | Significant Other Observable Inputs (Level 2) | Commercial mortgages | Other Real Estate Owned
Financial Assets [Abstract]
Total impaired loans/ other real estate owned, net		0
Non-recurring | Significant Other Observable Inputs (Level 2) | Residential Mortgages | Other Real Estate Owned
Financial Assets [Abstract]
Other real estate, foreclosed assets, and repossessed assets	0	0
Non-recurring | Significant Unobservable Inputs (Level 3) | Other Real Estate Owned
Financial Assets [Abstract]
Other real estate, foreclosed assets, and repossessed assets	143	237
Non-recurring | Significant Unobservable Inputs (Level 3) | Commercial mortgages | Other Real Estate Owned
Financial Assets [Abstract]
Total impaired loans/ other real estate owned, net		111
Non-recurring | Significant Unobservable Inputs (Level 3) | Residential Mortgages | Other Real Estate Owned
Financial Assets [Abstract]
Other real estate, foreclosed assets, and repossessed assets	$ 143	$ 126

FAIR VALUES - Quantitative Info

FAIR VALUES - Quantitative Information (Details) - Non-recurring - Significant Unobservable Inputs (Level 3) - OREO - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, fair value, recurring	$ 143	$ 237
Residential Mortgage | Minimum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value inputs, discount to appraised value	20.80%	20.80%
Residential Mortgage | Maximum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value inputs, discount to appraised value	20.80%	20.80%
Residential Mortgage | Weighted Average
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value inputs, discount to appraised value	20.80%	20.80%
Sales Comparison | Commercial mortgages
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, fair value, recurring		$ 111
Sales Comparison | Commercial mortgages | Minimum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value inputs, discount to appraised value		20.80%
Sales Comparison | Commercial mortgages | Maximum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value inputs, discount to appraised value		20.80%
Sales Comparison | Commercial mortgages | Weighted Average
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value inputs, discount to appraised value		20.80%
Sales Comparison | Residential Mortgage
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, fair value, recurring	$ 143	$ 126

FAIR VALUES - Carrying Amounts

FAIR VALUES - Carrying Amounts and Estimated Fair Values of Other Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financial assets:
Cash and due from financial institutions	$ 17,365	$ 29,467
Interest-earning deposits in other financial institutions	9,616	79,071
Securities available for sale	792,026	554,611
Securities held to maturity	3,790	2,469
Loans, net and loans held for sale	1,497,224	1,515,539
Accrued interest receivable	4,133	5,035
Deposits:
Time deposits	196,357	285,731
Carrying Amount
Financial assets:
Cash and due from financial institutions	17,365	29,467
Interest-earning deposits in other financial institutions	9,616	79,071
Equity investments	2,964	2,542
Securities available for sale	792,026	554,611
Securities held to maturity	3,790	2,469
FHLBNY and FRBNY stock	4,218	3,150
Loans, net and loans held for sale	1,497,620	1,515,709
Accrued interest receivable	5,985	6,271
Derivative assets	9,498	14,702
Deposits:
Demand, savings, and insured money market accounts	1,959,076	1,752,043
Time deposits	196,357	285,731
Accrued interest payable	210	262
Derivative liabilities	9,726	15,059
Estimated Fair Value
Financial assets:
Cash and due from financial institutions	17,365	29,467
Interest-earning deposits in other financial institutions	9,616	79,071
Equity investments	2,964	2,542
Securities available for sale	792,026	554,611
Securities held to maturity	3,796	2,501
Loans, net and loans held for sale	1,480,967	1,514,318
Accrued interest receivable	5,985	6,271
Derivative assets	9,498	14,702
Deposits:
Demand, savings, and insured money market accounts	1,959,076	1,752,043
Time deposits	197,658	288,398
Accrued interest payable	210	262
Derivative liabilities	9,726	15,059
Estimated Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and due from financial institutions	17,365	29,467
Interest-earning deposits in other financial institutions	9,616	79,071
Equity investments	2,964	2,542
Securities available for sale	60,431	0
Securities held to maturity	0	0
FHLBNY and FRBNY stock	0	0
Loans, net and loans held for sale	0	0
Accrued interest receivable	106	0
Derivative assets	0	0
Deposits:
Demand, savings, and insured money market accounts	1,959,076	1,752,043
Time deposits	0	0
Accrued interest payable	10	11
Derivative liabilities	0	0
Estimated Fair Value | Significant Other Observable Inputs (Level 2)
Financial assets:
Cash and due from financial institutions	0	0
Interest-earning deposits in other financial institutions	0	0
Equity investments	0	0
Securities available for sale	731,595	554,611
Securities held to maturity	1,639	2,175
FHLBNY and FRBNY stock	0	0
Loans, net and loans held for sale	0	0
Accrued interest receivable	1,746	1,356
Derivative assets	9,498	14,702
Deposits:
Demand, savings, and insured money market accounts	0	0
Time deposits	197,658	288,398
Accrued interest payable	200	251
Derivative liabilities		15,059
Estimated Fair Value | Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and due from financial institutions	0	0
Interest-earning deposits in other financial institutions	0	0
Equity investments	0	0
Securities available for sale	0	0
Securities held to maturity	2,157	326
FHLBNY and FRBNY stock	0	0
Loans, net and loans held for sale	1,480,967	1,514,318
Accrued interest receivable	4,133	4,915
Derivative assets	0	0
Deposits:
Demand, savings, and insured money market accounts	0	0
Time deposits	0	0
Accrued interest payable	$ 0	0
Derivative liabilities		$ 0

REGULATORY CAPITAL REQUIREMEN_3

REGULATORY CAPITAL REQUIREMENTS (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Net profits period for accessing dividends declarable (years)	2 years
Declarable dividends without prior approval for next fiscal year	$ 38,900
Total Capital (to Risk Weighted Assets):
Actual	215,091	$ 192,960
Tier 1 Capital (to Risk Weighted Assets):
Actual	196,147	175,216
Common Equity Tier 1 Capital (to Risk Weighted Assets):
Actual	196,147	175,216
Tier 1 Capital (to Average Assets):
Actual	$ 196,147	$ 175,216
Risk Based Ratios [Abstract]
Capital to Risk Weighted Assets	0.1421	0.1362
Tier One Risk Based Capital to Risk Weighted Assets	0.1296	0.1237
Common Equity Tier 1 Capital to Risk Weighted Assets	12.96%	12.37%
Leverage Ratios [Abstract]
Tier One Leverage Capital to Average Assets (in hundredths)	0.0806	0.0790
Bank
Total Capital (to Risk Weighted Assets):
Actual	$ 206,988	$ 185,606
Minimal Capital Adequacy	120,950	113,182
Minimal Capital Adequacy with Capital Buffer	158,746	148,551
To Be Well Capitalized Under Prompt Corrective Action Provisions	151,187	141,478
Tier 1 Capital (to Risk Weighted Assets):
Actual	188,063	167,881
Minimal Capital Adequacy	90,712	84,887
Minimal Capital Adequacy with Capital Buffer	128,509	120,256
To Be Well Capitalized Under Prompt Corrective Action Provisions	120,950	113,182
Common Equity Tier 1 Capital (to Risk Weighted Assets):
Actual	188,063	167,881
Minimal Capital Adequacy	68,034	63,665
Minimal Capital Adequacy with Capital Buffer	105,831	99,034
To Be Well Capitalized Under Prompt Corrective Action Provisions	98,272	91,960
Tier 1 Capital (to Average Assets):
Actual	188,063	167,881
Minimal Capital Adequacy	97,151	88,474
To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 121,439	$ 110,592
Risk Based Ratios [Abstract]
Capital to Risk Weighted Assets	0.1369	0.1312
Capital Required To Be Adequately Capitalized to Risk Weighted Assets	0.0800	0.0800
Capital Required for Capital Adequacy with Capital Buffer to Risk Weighted Assets	10.50%	10.50%
Capital Required To Be Well Capitalized to Risk Weighted Assets	0.1000	0.1000
Tier One Risk Based Capital to Risk Weighted Assets	0.1244	0.1187
Tier One Risk Based Capital Required To Be Adequately Capitalized to Risk Weighted Assets	0.0600	0.0600
Tier One Risk Based Capital Required for Capital Adequacy With Capital Buffer to Risk Weighted Assets	8.50%	8.50%
Tier One Risk Based Capital Required To Be Well Capitalized to Risk Weighted Assets	0.0800	0.0800
Common Equity Tier 1 Capital to Risk Weighted Assets	12.44%	11.87%
Common Equity Tier 1 Capital Required to be Adequately Capitalized to Risk Weighted Assets	4.50%	4.50%
Common Equity Tier One Risk Based Capital Requirement for Capital Adequacy with Capital Buffer to Risk Weighted Assets	7.00%	7.00%
Common Equity Tier 1 Capital Required to be Well Capitalized to Risk Weighted Assets	6.50%	6.50%
Leverage Ratios [Abstract]
Tier One Leverage Capital to Average Assets (in hundredths)	0.0774	0.0759
Tier One Leverage Capital Required To Be Adequately Capitalized to Average Assets (in hundredths)	0.0400	0.0400
Tier One Leverage Capital Required To Be Well Capitalized to Average Assets (in hundredths)	0.0500	0.0500

ACCUMULATED OTHER COMPREHENSI_3

ACCUMULATED OTHER COMPREHENSIVE INCOME OR LOSS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Summary of changes in accumulated other comprehensive income or loss by component, net of tax [Roll Forward]
Beginning balance	$ 199,699	$ 182,627
Other comprehensive income before reclassification	(8,924)	8,136
Amounts reclassified from accumulated other comprehensive income (loss)	(7)	64
Total other comprehensive income (loss)	(8,931)	8,200
Ending balance	211,455	199,699
Income tax expense	7,335	4,607
Total reclassification for the period, net of tax	26,425	19,262
Reclassification out of Accumulated Other Comprehensive Income (loss)
Summary of changes in accumulated other comprehensive income or loss by component, net of tax [Roll Forward]
Total reclassification for the period, net of tax	(7)	65
Accumulated Other Comprehensive Income (Loss)
Summary of changes in accumulated other comprehensive income or loss by component, net of tax [Roll Forward]
Beginning balance	2,401	(5,799)
Total other comprehensive income (loss)	(8,931)	8,200
Ending balance	(6,530)	2,401
Unrealized Gains and Losses on Securities Available for Sale
Summary of changes in accumulated other comprehensive income or loss by component, net of tax [Roll Forward]
Beginning balance	9,127	1,368
Other comprehensive income before reclassification	(11,622)	7,759
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Total other comprehensive income (loss)	(11,622)	7,759
Ending balance	(2,495)	9,127
Defined Benefit and Other Benefit Plans
Summary of changes in accumulated other comprehensive income or loss by component, net of tax [Roll Forward]
Beginning balance	(6,726)	(7,167)
Other comprehensive income before reclassification	2,698	377
Amounts reclassified from accumulated other comprehensive income (loss)	(7)	64
Total other comprehensive income (loss)	2,691	441
Ending balance	(4,035)	(6,726)
Defined Benefit and Other Benefit Plans | Reclassification out of Accumulated Other Comprehensive Income (loss)
Summary of changes in accumulated other comprehensive income or loss by component, net of tax [Roll Forward]
Income tax expense	1	(15)
Prior service costs | Reclassification out of Accumulated Other Comprehensive Income (loss)
Summary of changes in accumulated other comprehensive income or loss by component, net of tax [Roll Forward]
Pension and other employee benefits	(220)	(220)
Actuarial losses | Reclassification out of Accumulated Other Comprehensive Income (loss)
Summary of changes in accumulated other comprehensive income or loss by component, net of tax [Roll Forward]
Pension and other employee benefits	$ 212	$ 300

SEGMENT REPORTING (Details)

SEGMENT REPORTING (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)segment	Dec. 31, 2020USD ($)
Segment Reporting Information [Line Items]
Number of primary business segment | segment	2
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	$ 69,008	$ 66,907
Interest expense	3,419	3,988
Net interest income	65,589	62,919
Provision for loan losses	17	4,239
Net interest income after provision for loan losses	65,572	58,680
Total non-interest income	23,870	21,124
Non-interest expenses	55,682	55,935
Income before income tax expense	33,760	23,869
Income tax benefit	7,335	4,607
Net income	26,425	19,262
Segment assets	2,418,475	2,279,451
Operating Segments | Core Banking
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	68,984	66,849
Interest expense	3,419	3,988
Net interest income	65,565	62,861
Provision for loan losses	17	4,239
Net interest income after provision for loan losses	65,548	58,622
Total non-interest income	11,740	10,982
Non-interest expenses	47,807	48,479
Income before income tax expense	29,481	21,125
Income tax benefit	6,408	3,952
Net income	23,073	17,173
Segment assets	2,410,934	2,271,923
Operating Segments | WMG
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	0	0
Interest expense	0	0
Net interest income	0	0
Provision for loan losses	0	0
Net interest income after provision for loan losses	0	0
Total non-interest income	11,072	9,492
Non-interest expenses	6,642	6,283
Income before income tax expense	4,430	3,209
Income tax benefit	979	824
Net income	3,451	2,385
Segment assets	3,125	3,231
Intersegment Eliminations
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	24	58
Interest expense	0	0
Net interest income	24	58
Provision for loan losses	0	0
Net interest income after provision for loan losses	24	58
Total non-interest income	1,058	650
Non-interest expenses	1,233	1,173
Income before income tax expense	(151)	(465)
Income tax benefit	(52)	(169)
Net income	(99)	(296)
Segment assets	$ 4,416	$ 4,297