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Income Taxes - Tax Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Tax Disclosure [Abstract]
Computed expected tax benefit	$ 1,089	$ (3,368)	$ (4,791)
Increase in income tax resulting from state taxes	126	(392)	(558)
Provision for valuation allowance	1,438	286	4,755
All other items	52	1,975	392
Total income tax benefit	$ 2,705	$ (1,499)	$ (202)

The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to changes in the valuation allowance for deferred tax assets in the period.

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- Definition

The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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