Parent Company Condensed Financial Information - Condensed Results of Operations (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Equity in earnings of subsidiary bank:
NET INCOME (LOSS)	$ (23,899,000)	$ 757,000	$ 10,997,000	$ 3,471,000	$ 2,925,000	$ 3,679,000	$ (20,213,000)	$ (786,000)	$ (8,674,000)	$ (14,395,000)	$ (12,000)
Preferred stock dividend and accretion of preferred stock discount	1,419,000	838,000	833,000	821,000	771,000	771,000	674,000	771,000	3,911,000	2,987,000	3,181,000
Net loss to common shareholders	(25,318,000)	(81,000)	10,164,000	2,650,000	2,154,000	2,908,000	(20,887,000)	(1,557,000)	(12,585,107)	(17,382,132)	(3,193,377)
Parent Company
Equity in earnings of subsidiary bank:
Undistributed earnings (loss)									(7,684,000)	(13,511,000)	1,364,000
Income (expenses), net									(990,000)	(884,000)	(1,376,000)
NET INCOME (LOSS)									(8,674,000)	(14,395,000)	(12,000)
Preferred stock dividend and accretion of preferred stock discount									3,911,000	2,987,000	3,181,000
Net loss to common shareholders									$ (12,585,000)	$ (17,382,000)	$ (3,193,000)