Condensed Consolidated Statement of Shareholders' Equity Statement (USD $) In Thousands, unless otherwise specified	Total	Preferred Stock [Member]	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance (Restated) at Dec. 31, 2009	$ 163,912	$ 31,802	$ 130	$ (1,743)	$ 117,000	$ 15,790	$ 933
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	(2,614)	0	0	0	0	(2,614)	0
Change in fair value of available for sale securities, net of tax	2,515	0	0	0	0	0	2,515
Reclassification adjustment for realized gain on sale of securities included in net income, net of tax	(693)	0	0	0	0	0	(693)
Reclassification of cash flow hedge, net of tax	(79)	0	0	0	0	0	(79)
Total comprehensive income (loss)	(871)
Cash dividends paid on common shares, $0.105 per share	(1,561)	0	0	0	0	(1,561)	0
Cash dividends paid on preferred stock	(875)	0	0	0	0	(875)	0
Preferred stock accretion of discount	0	352	0	0	0	(352)	0
Issuance under equity compensation plans, net	365	0	0	0	365	0	0
Issuance under stock offering	14,882	0	19	0	14,863	0	0
Share-based compensation	943	0	0	0	943	0	0
Excess tax expense (benefit) related to equity compensation plans	(260)	0	0	0	(260)	0	0
Ending Balance (Restated) at Jun. 30, 2010	176,535	32,154	149	(1,743)	132,911	10,388	2,676
Beginning Balance (Restated) at Dec. 31, 2010	179,801	32,519	150	(1,743)	133,673	15,775	(573)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	12,385	0	0	0	0	12,385	0
Change in fair value of available for sale securities, net of tax	5,058	0	0	0	0	0	5,058
Reclassification adjustment for realized gain on sale of securities included in net income, net of tax	(435)	0	0	0	0	0	(435)
Reclassification of cash flow hedge, net of tax	(56)	0	0	0	0	0	(56)
Total comprehensive income (loss)	16,952
Cash dividends paid on common shares, $0.105 per share	(1,712)	0	0	0	0	(1,712)	0
Cash dividends paid on preferred stock	(875)	0	0	0	0	(875)	0
Preferred stock accretion of discount	0	381	0	0	0	(381)	0
Issuance under equity compensation plans, net	1,313	0	1	0	1,312	0	0
Issuance under stock offering	32,620		27	0	32,593	0	0
Share-based compensation	748	0	0	0	748	0	0
Excess tax expense (benefit) related to equity compensation plans	14	0	0	0	14	0	0
Ending Balance (Restated) at Jun. 30, 2011	$ 228,861	$ 32,900	$ 178	$ (1,743)	$ 168,340	$ 25,192	$ 3,994