Earnings Per Share - Basic (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Basic Earnings Per share
Net Income	$ 2,456	$ 1,408	$ 5,878	$ 4,769
Less: Preferred stock dividends and accretion	(87)	(202)	(262)	(400)
Net income available to common shareholders	$ 2,369	$ 1,206	$ 5,616	$ 4,369
Weighted average shares outstanding (in shares)	9,602,473	9,547,816	9,588,321	9,513,387
Basic earnings per share (in dollars per share)	$ 0.25	$ 0.13	$ 0.59	$ 0.46