CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss
Beginning balances at Dec. 31, 2016		$ 143,748	$ 53	$ 45,603	$ 124,111	$ (15,265)	$ (10,754)
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income		2,979			2,979
Other comprehensive income		1,998					1,998
Restricted stock awards		52		52
Restricted stock units for directors' deferred compensation plan		24		24
Cash dividends declared		(1,230)			(1,230)
Distribution of treasury stock for directors' compensation		269		68		201
Sale of treasury stock	[1]	217		61		156
Forfeiture of 1,139 shares of restricted stock awards		0		43		(43)
Ending balances at Mar. 31, 2017		148,257	53	45,901	125,860	(14,801)	(8,756)
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Cumulative effect of accounting change	[2]	(162)			40		(202)
Balances at January 1, 2018, as adjusted		149,651	53	45,967	128,493	(14,320)	(10,542)
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 income		(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)

[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 2016-01. See "Adoption of New Accounting Standards" discussion in Note 1.