10. Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Income Taxes Details
Expected tax (credit)	$ (2,214)	$ (2,347)
State income taxes, net of federal tax benefits	(260)	(277)
Decrease in environmental liability	3
Increase in valuation allowance	2,471	2,624
Income Tax Expense Benefit Continuing Operations
Expected tax (credit), Percentage	(34.00%)	(34.00%)
State income taxes, net of federal tax benefits, Percentage	(4.00%)	(4.00%)
Decrease in environmental liability, Percentage	0.00%
Increase in valuation allowance, Percentage	38.00%	38.00%

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage 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 changes in the valuation allowance for deferred tax assets.

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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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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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