Consolidated Statements of Stockholders' Equity (USD $) In Thousands, unless otherwise specified	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, 2008	$ 150,063	$ 33,548	$ 3,000	$ 34,452	$ 82,793	$ (3,730)
Stockholders' Equity [Roll Forward]
Cumulative effect accounting adjustment, net of tax	0	0	0	0	1,625	(1,625)
Net income (loss)	(14,617)	0	0	0	(14,617)	0
Other comprehensive income	1,044	0	0	0	0	1,044
Preferred stock discount accretion	0	476	0	0	(476)	0
Preferred stock issuance costs	(65)	0	0	(65)	0	0
Cash dividends declared, common stock	(1,566)	0	0	0	(1,566)	0
Preferred stock dividends declared	(1,800)	0	0	0	(1,800)	0
Balance at Dec. 31, 2009	133,059	34,024	3,000	34,387	65,959	(4,311)
Stockholders' Equity [Roll Forward]
Net income (loss)	13,383	0	0	0	13,383	0
Other comprehensive income	1,664	0	0	0	0	1,664
Preferred stock discount accretion	0	484	0	0	(484)	0
Preferred stock issuance costs	0
Cash dividends declared, common stock	(870)	0	0	0	(870)	0
Preferred stock dividends declared	(1,800)	0	0	0	(1,800)	0
Balance at Dec. 31, 2010	145,436	34,508	3,000	34,387	76,188	(2,647)
Stockholders' Equity [Roll Forward]
Net income (loss)	15,268	0	0	0	15,268	0
Other comprehensive income	3,301	0	0	0	0	3,301
Preferred stock discount accretion	0	1,492	0	0	(1,492)	0
Preferred stock issuance costs	0
Redemption of preferred stock	(36,000)	(36,000)	0	0	0	0
Repurchase of common stock warrant	(700)	0	0	(700)	0	0
Cash dividends declared, common stock	(2,959)	0	0	0	(2,959)	0
Preferred stock dividends declared	(895)	0	0	0	(895)	0
Balance at Dec. 31, 2011	$ 123,451	$ 0	$ 3,000	$ 33,687	$ 86,110	$ 654