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v2.4.1.9

Income Taxes (Details 2) (USD $) | Dec. 31, 2014 | Dec. 31, 2013
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Deferred tax assets: |  |
Capitalized research expense | $ 2,059,000 us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment | $ 2,782,000 us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment
Net operating loss carryforwards | 64,354,000 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | 48,846,000 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Research and development and other tax credits | 2,417,000 us-gaap_DeferredTaxAssetsOtherTaxCarryforwards | 1,877,000 us-gaap_DeferredTaxAssetsOtherTaxCarryforwards
Other | 8,491,000 us-gaap_DeferredTaxAssetsOther | 8,641,000 us-gaap_DeferredTaxAssetsOther
Deferred Tax Assets, Gross | 77,321,000 us-gaap_DeferredTaxAssetsGross | 62,146,000 us-gaap_DeferredTaxAssetsGross
Valuation allowance | (75,363,000)us-gaap_DeferredTaxAssetsValuationAllowance | (61,061,000)us-gaap_DeferredTaxAssetsValuationAllowance
Total deferred tax assets | 1,958,000 us-gaap_DeferredTaxAssetsNet | 1,085,000 us-gaap_DeferredTaxAssetsNet
Deferred tax liabilities: |  |
Acquired intangibles | (804,000)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets | (1,096,000)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
Investment in affiliated entity | (1,315,000)us-gaap_DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates | (123,000)us-gaap_DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates
Net deferred tax liabilities | $ (161,000)us-gaap_DeferredTaxLiabilities | $ (134,000)us-gaap_DeferredTaxLiabilities

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