Income Taxes - Valuation Allowance (Details) (USD $)	0 Months Ended	3 Months Ended			6 Months Ended					12 Months Ended			24 Months Ended	36 Months Ended	0 Months Ended
	Oct. 23, 2012	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Jun. 30, 2013		Jun. 30, 2012	Dec. 31, 2010		Jun. 30, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2013	Jun. 30, 2013	Sep. 12, 2012 Preferred Stock [Member]
Income Tax Disclosure [Abstract]
Valuation Allowance, Cumulative Tax Loss Position		$ (24,100,000)			$ (24,100,000)					$ (24,100,000)				$ (24,100,000)
Income (loss) before income taxes		7,407,000		1,614,000	14,664,000	[1]	5,086,000	(3,334,000)	[2]		(32,635,000)	(7,701,000)	29,000,000	(29,006,000)
Goodwill impairment					0	[1]		0	[2]		0	4,944,000		4,944,000
Tax loss position					14,664,000	[1]		(3,334,000)	[2]		(32,635,000)	(2,757,000)		(24,062,000)
Management projecting full utilization of tax benefits within		3 years			3 years					3 years				3 years
Valuation Allowance [Line Items]
PROVISION FOR LOAN LOSSES		55,000		2,218,000	292,000		4,569,000
Proceeds from Issuance of Convertible Preferred Stock	45,000,000
Charge-offs		2,115,000		4,907,000	3,767,000		10,287,000
Conversion of Stock, Amount Converted															21,000,000
Tier One Leverage Capital to Average Assets		10.60%			10.60%					10.60%				10.60%
Tier One Risk Based Capital to Risk Weighted Assets		12.80%			12.80%					12.80%				12.80%
Other Extraordinary Gain (Loss)			49,000,000
Capital to Risk Weighted Assets		14.00%			14.00%					14.00%				14.00%
Loans and Leases Receivable, Increase (Decrease) in Nonperforming Loans										$ (43,600,000)
Nonperforming Assets to Total Assets		1.30%	4.57%		1.30%					1.30%	4.57%			1.30%
Allowance For Loan Losses to Nonperforming Loans		116.38%		45.49%	116.38%		45.49%			116.38%				116.38%

[1] First six months of 2013

[2] 3rd and 4th quarter of 2010