Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (USD $) In Thousands	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Beginning Balances at Dec. 31, 2011	$ 8,675	$ 133,945	$ (1,321)	$ 141,299
Net income		8,769		8,769
Dividends		(3,678)		(3,678)
Other comprehensive income (loss), net of tax			297	297
Ending Balances at Jun. 30, 2012	8,675	139,036	(1,024)	146,687
Beginning Balances at Dec. 31, 2012	8,685	144,162	(2,738)	150,109
Net income		8,651		8,651
Dividends		(3,752)		(3,752)
Other comprehensive income (loss), net of tax			(9,470)	(9,470)
Ending Balances at Jun. 30, 2013	$ 8,685	$ 149,061	$ (12,208)	$ 145,538