Consolidated Statements Of Changes In Shareholders' Equity (USD $) In Thousands, unless otherwise specified	Capital Stock [Member]	Surplus [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2011	$ 9,051	$ 26,512	$ 86,198	$ 7,024	$ (10,535)	$ 118,250
Net Income Loss			6,268			6,268
Total other comprehensive loss				1,571		1,571
Dividend declared:
Common stock			(2,234)			(2,234)
Stock options exercised, including related tax effects		22	(140)		688	570
Recognition of stock based compensation expense		109	20			129
Restricted stock grants		(49)	8		41
Balance at Jun. 30, 2012	9,051	26,594	90,120	8,595	(9,806)	124,554
Balance at Dec. 31, 2012	9,051	26,693	93,900	7,697	(9,295)	128,046
Net Income Loss			6,386			6,386
Total other comprehensive loss				(11,974)		(11,974)
Dividend declared:
Common stock			(2,414)			(2,414)
Stock options exercised, including related tax effects		6	(39)		242	209
Recognition of stock based compensation expense		211				211
Restricted stock grants		(121)	17		104
Balance at Jun. 30, 2013	$ 9,051	$ 26,789	$ 97,850	$ (4,277)	$ (8,949)	$ 120,464