Consolidated Statements of Changes in Shareholders' Equity (USD $) In Thousands, except Share data	Series A Preferred Stock	Series B Preferred Stock	Series C Preferred Stock	Common Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Balance beginning at Dec. 31, 2009	$ 1,000	$ 23,170		$ 118	$ 136,635	$ (3,061)	$ 5,309	$ (5,945)	$ 157,226
Balance beginning, shares at Dec. 31, 2009	1,000	25,000		11,622,893		346,401
Issuance of stock				166	37,925				38,091
Issuance of stock, shares				16,560,000
Stock options exercised
Forfeiture of restricted stock				(2)			2
Forfeiture of restricted stock, shares				(12,133)
Redemption of preferred stock
Repurchase of warrant
Dividends on preferred stock							(1,250)		(1,250)
Amortization of preferred stock Series B discount		457					(457)
Stock-based compensation cost					542				542
Adjustment for derivatives							(187)	187
Other comprehensive income, net of tax								2,022	2,022
Net income							1,410		1,410
Balance ending at Dec. 31, 2010	1,000	23,627		282	175,102	(3,061)	4,527	(3,736)	198,041
Balance ending, shares at Dec. 31, 2010	1,000	25,000		28,170,760		346,401
Issuance of stock			25,000						25,000
Issuance of stock, shares			25,000
Stock options exercised
Issuance of restricted stock				10	(3,071)	3,061
Issuance of restricted stock, shares				1,100,564		(346,401)
Forfeiture of restricted stock
Forfeiture of restricted stock, shares				(51,245)
Redemption of preferred stock		(25,000)							(25,000)
Redemption of preferred stock, shares		(25,000)
Repurchase of warrant					(599)				599
Dividends on preferred stock							(1,410)		(1,410)
Amortization of preferred stock Series B discount		1,373					(1,373)
Stock-based compensation cost					1,630				1,630
Other comprehensive income, net of tax								2,062	2,062
Net income							23,383		23,383
Balance ending at Dec. 31, 2011	1,000		25,000	292	173,062		25,427	(1,674)	223,107
Balance ending, shares at Dec. 31, 2011	1,000		25,000	29,220,079
Issuance of stock
Stock options exercised					34				(34)
Stock options exercised, shares				6,644					5.21
Issuance of restricted stock
Issuance of restricted stock, shares				75,638
Forfeiture of restricted stock
Forfeiture of restricted stock, shares				(30,731)
Forfeiture of restricted stock in lieu of taxes						(255)			(255)
Forfeiture of restricted stock in lieu of taxes, shares				(45,779)		45,779
Redemption of preferred stock
Repurchase of warrant
Tax effect of vested restricted stock					204				204
Dividends on preferred stock							(1,250)		(1,250)
Stock-based compensation cost					1,888				1,888
Other comprehensive income, net of tax								1,116	1,116
Net income							9,274		9,274
Balance ending at Dec. 31, 2012	$ 1,000		$ 25,000	$ 292	$ 175,188	$ (255)	$ 33,451	$ (558)	$ 234,118
Balance ending, shares at Dec. 31, 2012	1,000		25,000	29,225,851		45,779