Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
United States federal and state income tax (benefit) expense from operations
Current	$ 1,003	$ 848	$ (1,834)	$ 1,504
Deferred	347	321	4,056	(916)
Total	$ 1,350	$ 1,169	$ 2,222	$ 588