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Income Taxes (Deferred Tax Assets and Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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| Deferred tax assets | ||
| Net operating loss carryforwards | $ 12,849us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | $ 18,895us-gaap_DeferredTaxAssetsOperatingLossCarryforwards |
| Research and development credit carryforwards | 6,392us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch | 5,189us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch |
| Accrued liabilities | 583us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities | 581us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities |
| Deferred revenues | 3,291us-gaap_DeferredTaxAssetsDeferredIncome | 3,188us-gaap_DeferredTaxAssetsDeferredIncome |
| Deferred rent | 191us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent | 210us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent |
| Intangible assets | 401us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets | 440us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets |
| Stock-based compensation | 4,149us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost | 1,714us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost |
| Other | 903us-gaap_DeferredTaxAssetsOther | 521us-gaap_DeferredTaxAssetsOther |
| Gross deferred tax assets | 28,759us-gaap_DeferredTaxAssetsGross | 30,738us-gaap_DeferredTaxAssetsGross |
| Valuation allowance | (3,079)us-gaap_DeferredTaxAssetsValuationAllowance | (27,181)us-gaap_DeferredTaxAssetsValuationAllowance |
| Net deferred tax assets | 25,680us-gaap_DeferredTaxAssetsNet | 3,557us-gaap_DeferredTaxAssetsNet |
| Deferred tax liabilities | ||
| Fixed assets | (3,039)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | (3,483)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment |
| Intangible assets | (2)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets | (34)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets |
| Total deferred tax liabilities | (3,041)us-gaap_DeferredTaxLiabilities | (3,517)us-gaap_DeferredTaxLiabilities |
| Net deferred tax assets | $ 22,639us-gaap_DeferredTaxAssetsLiabilitiesNet | $ 40us-gaap_DeferredTaxAssetsLiabilitiesNet |
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill. No definition available.
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred rent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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