Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deferred Tax Assets, Gross [Abstract]
Net operating loss carry-forwards	$ 23,114	$ 27,266
Credit carry-forwards		137
Accruals and reserves	141
Deferred revenue	382us-gaap_DeferredTaxAssetsDeferredIncome	224us-gaap_DeferredTaxAssetsDeferredIncome
Intangibles	273	1,046
Other, net		373us-gaap_DeferredTaxAssetsOther
Fixed Assets	894
Gross tax assets	24,804us-gaap_DeferredTaxAssetsGross	29,046us-gaap_DeferredTaxAssetsGross
Valuation allowance	24,804	29,046
Net deferred tax assets

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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