NET LOSS PER SHARE - Calculation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
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| Numerator: | ||||
| Net loss | $ (6,612) | $ (9,712) | $ (19,504) | $ (29,647) |
| Denominator: | ||||
| Weighted-average shares used to compute net loss per share, basic and diluted | 53,683,727 | 50,818,710 | 53,070,863 | 49,920,630 |
| Basic (in dollars per share) | $ (0.12) | $ (0.19) | $ (0.37) | $ (0.59) |
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- Definition Denominator [Abstract] No definition available.
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- Definition Numerator [Abstract] No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). No definition available.
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