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Net Loss per Share (Tables) | 6 Months Ended
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Jun. 30, 2020
Net Loss per Share |
Schedule of net loss per share, basic and diluted | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019 |
Numerator: | ​ | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |  | ​
Net loss - basic and diluted | ​ | $ | (10,611) | ​ | $ | (12,978) | ​ | $ | (23,546) | ​ | $ | (24,621) | ​
Denominator: | ​ |  | ​ | ​ |  |  | ​ |  | ​ | ​ |  |  | ​
Weighted average common shares outstanding | ​ |  | 29,428,249 | ​ |  | 29,329,229 | ​ |  | 29,419,741 | ​ |  | 29,328,075 | ​
Less: weighted average common shares subject to repurchase | ​ |  | — | ​ |  | (20,079) | ​ |  | — | ​ |  | (26,570) | ​
Weighted average common shares outstanding used to compute basic and diluted net loss per share | ​ |  | 29,428,249 | ​ |  | 29,309,150 | ​ |  | 29,419,741 | ​ |  | 29,301,505 | ​
Net loss per share, basic and diluted | ​ | $ | (0.36) | ​ | $ | (0.44) | ​ | $ | (0.80) | ​ | $ | (0.84) | ​
Schedule of antidilutive securities excluded from calculation of diluted net loss per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019 |
Common stock subject to repurchase | ​ | — |  | 12,384 | ​ | — |  | 12,384 | ​
Outstanding options | ​ | 5,561,098 |  | 4,157,154 | ​ | 5,561,098 |  | 4,157,154 | ​
Total shares of common stock equivalents | ​ | 5,561,098 |  | 4,169,538 | ​ | 5,561,098 |  | 4,169,538 | ​

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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