CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Cumulative effect adjustment for the adoption of ASC 326	[2]	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjusted Balance	Retained Earnings	Retained Earnings Cumulative effect adjustment for the adoption of ASC 326	[2]	Retained Earnings Cumulative Effect, Period of Adoption, Adjusted Balance	Treasury Stock	Treasury Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Cumulative Effect, Period of Adoption, Adjusted Balance
Beginning balance at Dec. 31, 2021		$ 211,455				$ 53		$ 46,901		$ 188,877				$ (17,846)		$ (6,530)
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income		6,867								6,867
Other comprehensive loss		(31,075)														(31,075)
Restricted stock awards		179						179
Restricted stock units for directors' deferred compensation plan		5						5
Distribution of shares of treasury stock grants for employee restricted stock awards		0						(112)						112
Cash dividends declared		(1,449)								(1,449)
Distribution of treasury stock for directors' compensation		105						(139)						244
Repurchase of shares of common stock		(695)												(695)
Sale of shares of treasury stock	[1]	118						46						72
Ending balance at Mar. 31, 2022		185,510				53		46,880		194,295				(18,113)		(37,605)
Beginning balance at Dec. 31, 2021		211,455				53		46,901		188,877				(17,846)		(6,530)
Ending balance at Dec. 31, 2022		$ 166,388	$ (1,076)		$ 165,312	53	$ 53	47,331	$ 47,331	211,859	$ (1,076)		$ 210,783	(17,598)	$ (17,598)	(75,257)	$ (75,257)
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]		Accounting Standards Update 2016-13 [Member]
Net income		$ 7,270								7,270
Other comprehensive loss		5,784														5,784
Restricted stock awards		263						263
Restricted stock units for directors' deferred compensation plan		5						5
Distribution of shares of treasury stock grants for employee restricted stock awards		0						(131)						131
Cash dividends declared		(1,460)								(1,460)
Distribution of treasury stock for directors' compensation		96						(147)						243
Repurchase of shares of common stock		(98)												(98)
Sale of shares of treasury stock	[1]	169						66						103
Ending balance at Mar. 31, 2023		$ 177,341				$ 53		$ 47,387		$ 216,593				$ (17,219)		$ (69,473)

[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.

[2] Due to implementation of ASC 326. See "Adoption of New Accounting Standards" discussion in Note 1.