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Warrants - Additional Information (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
3 Months Ended | ||
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Mar. 31, 2014
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Mar. 31, 2013
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Dec. 31, 2013
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| Class Of Warrant Or Right [Line Items] | |||
| Number of warrants outstanding | 165,517 | 263,463 | |
| Fair value of preferred warrant liability | $ 0 | $ 260 | |
| Change in fair value of preferred warrants | $ 36 | $ 20 | |
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Series E Redeemable Convertible Preferred Stock
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| Class Of Warrant Or Right [Line Items] | |||
| Conversion rate | 2.69244 | ||
| Shares called by warrants | 11,367 | ||
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Common Stock
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| Class Of Warrant Or Right [Line Items] | |||
| Shares called by warrants | 172,662 | ||
| Number of warrants outstanding | 161,295 | ||
| X | ||||||||||
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- Definition
Fair value of preferred stock warrants liabilities. No definition available.
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- Definition
Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of increase (decrease) of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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