Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Assets
Collateral pledged	$ 3,800	$ 2,650
Allowance for loan losses on Portfolio loans, covered under FDIC loss share	11,102	1,635
State tax credits, held for sale, carried at fair value	$ 25,069	$ 26,350
Shareholders' equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	35,000	35,000
Preferred stock, shares outstanding	35,000	35,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	18,039,710	17,849,862
Treasury stock, shares	76,000	76,000