CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss
Balances at Dec. 31, 2015		$ 137,242	$ 53	$ 45,537	$ 118,973	$ (16,379)	$ (10,942)
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income		2,707			2,707
Other comprehensive income		1,604					1,604
Restricted stock awards		48		48
Restricted stock units for directors' deferred compensation plan		23		23
Cash dividends declared		(1,220)			(1,220)
Distribution of shares of treasury stock for directors' compensation		262		19		243
Distribution of shares of treasury stock for employee stock compensation		210		15		195
Sale of treasury stock	[1]	170		10		160
Balances at Mar. 31, 2016		141,046	53	45,652	120,460	(15,781)	(9,338)
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 shares of treasury stock for directors' compensation		269		68		201
Distribution of shares of treasury stock for employee stock compensation		200		50		150
Sale of treasury stock	[1]	217		61		156
Forfeiture of 1,139 shares of restricted stock awards		0		43		(43)
Balances at Mar. 31, 2017		$ 148,257	$ 53	$ 45,901	$ 125,860	$ (14,801)	$ (8,756)

[1] All treasury stock sales were completed at arm's length for adequate consideration with the Chemung Canal Trust Company Profit Sharing, Savings, and Investment Plan and the Chemung Canal Trust Company - Finger Lakes Profit Sharing, Savings, and Investment Plan, which are defined contribution plans sponsored by the Bank.