CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss
Beginning balances at Dec. 31, 2017		$ 149,813	$ 53	$ 45,967	$ 128,453	$ (14,320)	$ (10,340)
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income		4,439			4,439
Other comprehensive loss		(3,294)					(3,294)
Restricted stock awards		163		163
Restricted stock units for directors' deferred compensation plan		25		25
Cash dividends declared		(1,238)			(1,238)
Distribution of treasury stock for directors' compensation		301		147		154
Distribution of shares of treasury stock for employee stock compensation		89		44		45
Sale of treasury stock	[1]	126		58		68
Ending balances at Mar. 31, 2018		150,262	53	46,404	131,694	(14,053)	(13,836)
Beginning balances at Dec. 31, 2018		165,029	53	45,820	143,129	(12,562)	(11,411)
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income		4,468			4,468
Other comprehensive loss		2,569					2,569
Restricted stock awards		101		101
Restricted stock units for directors' deferred compensation plan		11		11
Cash dividends declared		(1,257)			(1,257)
Distribution of treasury stock for directors' compensation		357		139		218
Distribution of shares of treasury stock for employee stock compensation		100		39		61
Sale of treasury stock	[1]	158		64		94
Distribution of treasury stock for deferred directors' compensation		11				11
Repurchase of common stock		(13)				(13)
Ending balances at Mar. 31, 2019		$ 171,534	$ 53	$ 46,174	$ 146,340	$ (12,191)	$ (8,842)

[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.