Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data	6 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2010
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	25,081,819	25,082,344
Common stock, shares outstanding	25,081,819	25,082,344
Accumulated other comprehensive income (loss), net of tax expense (benefit) (in dollars)	$ 776	$ (783)
Preferred stock
Preferred stock, shares authorized	5,000,000	5,000,000
Series A preferred stock
Preferred stock
Preferred stock, per share stated value (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, shares issued	21,000	21,000
Preferred stock, shares outstanding	21,000	21,000
Series C preferred stock
Preferred stock
Preferred stock, per share stated value (in dollars per share)	$ 3.25	$ 3.25
Preferred stock, shares issued	1,189,538	1,189,538
Preferred stock, shares outstanding	1,189,538	1,189,538