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Exclusion of Potentially Dilutive Securities From Calculation of Diluted Net Loss Per Share (Detail)
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3 Months Ended | ||
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Mar. 31, 2013
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Mar. 31, 2012
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Dec. 31, 2012
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| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Convertible notes | 3,782,857 | 0 | |
| Series A non-voting preferred stock | 287,324 | 0 | 0 |
| Shares underlying outstanding warrants | 8,610,665 | 4,807,534 | |
| Shares underlying outstanding stock options | 3,298,297 | 1,547,122 | |
| Total | 15,979,143 | 6,354,656 | |
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- Definition
Convertible Notes. No definition available.
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- Definition
Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Aggregate amount of each class of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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