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Net Income (Loss) Per Common Share - Warrants, Options and Purchase Rights Excluded from Computation of Diluted Net Loss Per Share (Detail)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2014
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Sep. 30, 2013
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Warrants
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| Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] | ||||
| Shares issuable | 649 | 4,034 | ||
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Stock Options
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| Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] | ||||
| Shares issuable | 8,173 | 6,560 | 8,173 | 6,560 |
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Employee Stock Purchase Plan (ESPP)
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| Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] | ||||
| Shares issuable | 33 | 28 | 33 | 28 |