Income Taxes - Tax Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Document Fiscal Year Focus	2014
Federal Income Tax Expense (Benefit), Continuing Operations	$ 1,152	$ 0	$ 13,224
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	34.00%
Computed expected tax expense (benefit)	5,140	1,677	(2,099)
Increase (decrease) in income tax resulting from state taxes	(629)	98	(122)
Valuation allowance	(3,301)	(1,511)	15,635
All other items	(58)	(264)	410
Total income tax expense (benefit)	1,152	0	13,824
Amounts attributable to discontinued operations	$ 0	$ 0	$ 600