|
Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Deferred tax assets: | ||
| Net operating loss carryforwards | $ 19,572 | $ 13,716 |
| Amortization of up-front fees | 3,087 | 1,214 |
| Amortization of in-process R&D | 407 | |
| Stock compensation | 1,522 | 531 |
| Accruals and reserves | 622 | 846 |
| Tax credits | 991 | 700 |
| Total deferred tax assets | 26,201 | 17,007 |
| Valuation allowance | (26,201) | (17,007) |
| Net deferred tax assets |
| X | ||||||||||
|
- Definition
Deferred tax assets amortization of in process research and development. No definition available.
|
| X | ||||||||||
|
- Definition
Deferred tax assets amortization of up-front fees. No definition available.
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- Definition
The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- 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
|