Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net Income	$ 2,493	$ 3,414
Total average basic common shares outstanding	19,556,743	19,904,819
Effect of dilutive stock options and restricted stock awards	1,068,298	834,377
Total average diluted common shares outstanding	20,625,041	20,739,196
Earnings per share-basic	$ 0.13	$ 0.17
Earnings per share-diluted	$ 0.12	$ 0.16
Weighted average anti-dilutive common shares	402,132	378,927