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Income Taxes Income Taxes - Components of Deferred Income Tax Assets (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
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Dec. 31, 2012
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| Deferred Tax Assets, Net [Abstract] | ||
| Net operating loss carryforwards | $ 8,545 | $ 8,216 |
| Research and development credits | 12,718 | 9,088 |
| Accrued expenses and other | 476 | 403 |
| Employee compensation | 1,686 | 1,567 |
| Stock-Based compensation | 2,732 | 3,184 |
| Deferred tax assets, depreciation and amortization | 2,637 | 0 |
| Deferred tax assets, gross | 28,794 | 22,458 |
| Less valuation allowance | (28,628) | (22,243) |
| Deferred tax assets, net of valuation allowance | 166 | 215 |
| Deferred Tax Liabilities, Net [Abstract] | ||
| Depreciation and amortization | 0 | (215) |
| Deferred Tax Assets, Net | $ 166 | $ 0 |
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from depreciation and amortization. No definition available.
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- Definition
Deferred Tax Liabilities Depreciation And Amortization 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 employee 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 share-based compensation. 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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- Details
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