Income Taxes - Provision for Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Current:
Federal			$ (134)	$ (134)
State			0	0
Total current			(134)	(134)
Deferred:
Federal			4,473	4,324
State			878	1,016
Total deferred			5,351	5,340
Increase (decrease) in valuation allowance for deferred tax assets			0	0
Total income taxes	$ 2,558	$ 2,598	$ 5,217	$ 5,206