Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets
Collateral pledged	$ 990	$ 3,270
Allowance for loan losses on Portfolio loans, covered under FDIC loss share	15,438	11,547
State tax credits, held for sale, carried at fair value	$ 16,491	$ 23,020
Shareholders' equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	19,399,709	18,088,152
Treasury stock, shares	76,000	76,000