Consolidated Statements of Stockholders' Equity (USD $) In Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss)[Member]
Balance at Dec. 31, 2009	$ 133,059	$ 34,024	$ 3,000	$ 34,387	$ 65,959	$ (4,311)
Stockholders' Equity [Roll Forward]
Net income	5,942	0	0	0	5,942	0
Other comprehensive income	1,923	0	0	0	0	1,923
Preferred stock discount accretion	0	241	0	0	(241)	0
Preferred stock dividends declared	(900)	0	0	0	(900)	0
Balance at Jun. 30, 2010	140,024	34,265	3,000	34,387	70,760	(2,388)
Balance at Dec. 31, 2010	145,436	34,508	3,000	34,387	76,188	(2,647)
Stockholders' Equity [Roll Forward]
Net income	8,453	0	0	0	8,453	0
Other comprehensive income	3,066	0	0	0	0	3,066
Preferred stock discount accretion	0	1,492	0	0	(1,492)	0
Redemption of preferred stock	(36,000)	(36,000)	0	0	0	0
Cash dividends declared, $0.05 per common share	(870)	0	0	0	(870)	0
Preferred stock dividends declared	(895)	0	0	0	(895)	0
Balance at Jun. 30, 2011	$ 119,190	$ 0	$ 3,000	$ 34,387	$ 81,384	$ 419