Consolidated Statements Of Changes In Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2014	$ 4,607	$ 37,504	$ 71,452	$ (3,100)	$ (6,942)	$ 103,521
Net income			2,884			2,884
Other comprehensive income				59		59
Cash dividends declared			(718)			(718)
Treasury shares issued under stock option plans					4	4
Common stock issued under dividend reinvestment plan	9	203				212
Balance at Mar. 31, 2015	4,616	37,707	73,618	(3,041)	(6,938)	105,962
Balance at Dec. 31, 2015	4,659	38,778	78,517	(3,722)	(6,856)	111,376
Net income			2,726			2,726
Other comprehensive income				702		702
Cash dividends declared			(813)			(813)
Treasury shares issued under stock option plans		1			3	4
Common stock issued under dividend reinvestment plan	14	290				304
Stock option compensation expense		14				14
Balance at Mar. 31, 2016	$ 4,673	$ 39,083	$ 80,430	$ (3,020)	$ (6,853)	$ 114,313