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Net Loss Per Share of Common Stock | 6 Months Ended
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Jun. 30, 2019
Earnings Per Share [Abstract] |
Net Loss Per Share of Common Stock | Net Loss Per Share of Common Stock Basic and Diluted Net Loss per Share The table below summarizes the computation of basic and diluted net loss per share (in thousands, except share and per share data):
| Three Months Ended June 30, |  |  | Six Months Ended June 30, |
| 2019 |  | 2018 |  |  | 2019 |  | 2018 |
Net loss | $ | (8,654 | ) |  | $ | (3,147 | ) |  |  | $ | (17,999 | ) |  | $ | (7,348 | ) |
Weighted-average shares used to compute basic and diluted net loss per share | 24,577,938 |  |  | 3,608,283 |  | * |  | 24,484,608 |  |  | 3,603,308 |  | *
Net loss per share, basic and diluted | $ | (0.35 | ) |  | $ | (0.87 | ) | * |  | $ | (0.74 | ) |  | $ | (2.04 | ) | *
* Calculated based on the 1-for-18 reverse stock split effected October 4, 2018. Unvested shares for the periods ended June 30, 2019 and 2018 were excluded from the weighted-average shares used to compute basic and diluted net loss per share. The following common stock equivalents were excluded from the computation of diluted net loss per share for the periods presented because including them would have been antidilutive:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Stock options | 3,024,743 |  |  | 2,900,842 |  |  | 3,024,743 |  |  | 2,900,842 |
Restricted stock units | 564,638 |  |  | — |  |  | 564,638 |  |  | — |
Shares subject to repurchase | 46,811 |  |  | 64,107 |  |  | 46,811 |  |  | 64,107 |
ESPP purchase rights | 84,321 |  |  | — |  |  | 84,321 |  |  | — |
Redeemable convertible preferred stock | — |  |  | 12,066,654 |  |  | — |  |  | 12,066,654 |
Redeemable convertible preferred stock warrants | — |  |  | 160,657 |  |  | — |  |  | 160,657 |
Common stock warrants | 118,122 |  |  | 124,326 |  |  | 118,122 |  |  | 124,326 |
| 3,838,635 |  |  | 15,316,586 |  |  | 3,838,635 |  | 15,316,586

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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