Earnings per Common Share (Schedule of Computation of Earnings per Common Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Earnings per Common Share [Abstract]
Net income	$ 4,353	$ 3,584	$ 8,584	$ 6,602
Preferred stock dividends and accretion	(84)	(145)	(225)	(291)
Net income available to common stockholders	$ 4,269	$ 3,439	$ 8,359	$ 6,311
Basic weighted average common shares outstanding	16,333,653	16,290,700	16,332,990	16,290,547
Plus: effect of dilutive options and warrants	8	25	7	18
Diluted weighted average common shares outstanding	16,341,767	16,315,667	16,340,011	16,309,026
Earnings per Common Share: Basic	$ 0.26	$ 0.21	$ 0.51	$ 0.39
Earnings per Common Share: Diluted	$ 0.26	$ 0.21	$ 0.51	$ 0.39