Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes Details
Federal	$ 1,600	$ 1,915	$ 1,688
State	535	606	600
Total current	2,135	2,521	2,288
Federal	330	(60)	(220)
State	70	(40)	(80)
Total deferred	400	(100)	(300)
Total provision for income taxes	$ 2,535	$ 2,421	$ 1,988