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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Detail)
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12 Months Ended | |
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Dec. 31, 2014
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Dec. 31, 2013
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| Income Tax Disclosure [Abstract] | ||
| Tax provision at statutory rate | 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate |
| State taxes, net of federal benefit | 5.03%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes | 5.09%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes |
| Permanent differences | (0.47%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential | (1.19%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential |
| Tax Credits | 3.37%us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits | 4.20%us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits |
| Other | 0.21%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments | 7.47%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments |
| Decrease in valuation reserve | (42.14%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance | (49.57%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance |
| Total | 0.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 0.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations |
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- Definition
Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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 applicable to statutory income tax expense (benefit) outside of the country of domicile. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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 other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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 applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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 tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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