Net Loss Per Share - Summary of Computation of Company's Basic and Diluted Net Loss per Share (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
|
| Numerator: | ||||
| Net loss, basic and diluted | $ (10,237) | $ (1,418) | $ (33,824) | $ (4,344) |
| Net loss | $ (10,237) | $ (1,418) | $ (33,824) | $ (4,344) |
| Denominator: | ||||
| Shares issued in computing net loss per share, basic and diluted | 481,613 | 451,550 | 476,023 | 444,594 |
| Net loss per share, basic and diluted | $ (21.26) | $ (3.14) | $ (71.06) | $ (9.77) |