Income Taxes - Provision for Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Current:
Federal	$ 45	$ 485
State		0
Total current	45	485
Deferred:
Federal	1,196	(5,912)
State	376	(1,052)
Total deferred	1,572	(6,964)
Increase (decrease) in valuation allowance for deferred tax assets	(11,000)	11,000
Total income taxes	$ (9,383)	$ 4,521