Schedule of Components of Income Tax Expense (Benefit) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Expected federal statutory tax expenses(benefit)	$ (231)us-gaap_CurrentFederalTaxExpenseBenefit	$ (354)us-gaap_CurrentFederalTaxExpenseBenefit
Increase (reduction) in taxes resulting from:
State income taxes	3	0
Non-deductible expenses (permanent differences)	11	8
Change in valuation allowance	1,164	24,749
Rate changes	16	36
Other	(960)	228
Income tax expense	$ 3us-gaap_IncomeTaxExpenseBenefit	$ 24,667us-gaap_IncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of state and local current and deferred income tax expense (benefit) attributable to continuing operations.

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