CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Surplus [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2013	$ 96,351	$ 11,513	$ 31,626	$ 59,089	$ (54)	$ (5,823)
Balance (in shares) at Dec. 31, 2013		5,756,474
Net Income	10,211			10,211
Other comprehensive income (loss), net of taxes	4,384				4,384
Issuance of common stock under dividend reinvestment plan and exercise of employee stock options	1,140	$ 92	1,048
Issuance of common stock under dividend reinvestment plan and exercise of employee stock options (in shares)		46,047
Dividends	(5,815)			(5,815)
Balance at Dec. 31, 2014	106,271	$ 11,605	32,674	63,485	4,330	(5,823)
Balance (in shares) at Dec. 31, 2014		5,802,521
Net Income	9,172			9,172
Other comprehensive income (loss), net of taxes	(2,295)				(2,295)
Issuance of common stock under dividend reinvestment plan and exercise of employee stock options	1,325	$ 102	1,156			67
Issuance of common stock under dividend reinvestment plan and exercise of employee stock options (in shares)		50,796
Dividends	(6,035)			(6,035)
Balance at Dec. 31, 2015	108,438	$ 11,707	33,830	66,622	2,035	(5,756)
Balance (in shares) at Dec. 31, 2015		5,853,317
Net Income	9,472			9,472
Other comprehensive income (loss), net of taxes	(3,454)				(3,454)
Issuance of common stock under dividend reinvestment plan and exercise of employee stock options	1,319	$ 102	1,217
Issuance of common stock under dividend reinvestment plan and exercise of employee stock options (in shares)		51,246
Dividends	(6,090)			(6,090)
Balance at Dec. 31, 2016	$ 109,685	$ 11,809	$ 35,047	$ 70,004	$ (1,419)	$ (5,756)
Balance (in shares) at Dec. 31, 2016		5,904,563