Earnings Per Common Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income [Abstract]
Net income	$ 2,680	$ 1,084	$ 9,562	$ 3,522
Less preferred stock dividends	(118)	(127)	(364)	(381)
Net income applicable to common shareholders	2,562	957	9,198	3,141
Effect of Series D preferred stock	118		364
Net income applicable to common shareholders, diluted	$ 2,680	$ 957	$ 9,562	$ 3,141
Shares [Abstract]
Weighted average shares outstanding, basic (in shares)	21,299	21,212	21,250	21,253
Effect of dilutive stock options (in shares)		76	19	66
Effect of Series D preferred stock (in shares)	1,629		1,629
Weighted average shares outstanding, diluted (in shares)	22,928	21,288	22,898	21,319
Per Share Amount [Abstract]
Net income applicable to common shareholders, basic (in dollars per share)	$ 0.12	$ 0.05	$ 0.43	$ 0.15
Net income applicable to common shareholders, diluted (in dollars per share)	$ 0.12	$ 0.04	$ 0.42	$ 0.15