v3.7.0.1

NET LOSS PER SHARE - Calculation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Numerator: |  |  |  |
Net loss | $ (3,873) | $ (7,412) | $ (12,892) | $ (19,935)
Denominator: |  |  |  |
Weighted-average shares used to compute net loss per share, basic and diluted | 53,175,684 | 49,798,994 | 52,808,412 | 49,467,667
Basic (in dollars per share) | $ (0.07) | $ (0.15) | $ (0.24) | $ (0.40)

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