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Net Loss Per Share (Tables) | 9 Months Ended
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Sep. 30, 2021
Net Loss Per Share |
Schedule of basic and diluted net loss per common share | Basic and diluted net loss per share was calculated as follows (in thousands, except share and per share amounts):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30,
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020
Numerator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net loss | ​ | $ | (17,713) | ​ | $ | (7,844) | ​ | $ | (49,458) | ​ | $ | (11,990)
Repurchase and retirement of Series A and Series A-1 convertible preferred stock | ​ | ​ | — | ​ | ​ | (1,869) | ​ | ​ | — | ​ | ​ | (1,869)
Net loss attributable to common stockholders | ​ | $ | (17,713) | ​ | $ | (9,713) | ​ | $ | (49,458) | ​ | $ | (13,859)
Denominator: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Weighted average shares used to compute net loss per share attributable to common stockholders, basic and diluted | ​ |  | 39,607,745 | ​ |  | 2,617,543 | ​ |  | 39,450,655 | ​ |  | 2,617,543
Net loss per share attributable to common stockholders, basic and diluted | ​ | $ | (0.45) | ​ | $ | (3.71) | ​ | $ | (1.25) | ​ | $ | (5.29)
Schedule of anti-dilutive securities excluded from computation of earnings per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | September 30
​ | ​ | ​ | 2021 | ​ | ​ | 2020
Unvested restricted common stock |  | ​ | 542,504 |  | ​ | 762,195
Options to purchase common stock |  | ​ | 5,564,588 |  | ​ | 2,639,009
Employee stock purchase plan contingently issuable | ​ | ​ | 16,979 | ​ | ​ | —
Shares available for future grant under the 2014 Stock Plan | ​ | ​ | — |  | ​ | 1,175,022
Convertible preferred stock (as converted to common shares) | ​ | ​ | — | ​ | ​ | 23,765,075
​ | ​ | ​ | 6,124,071 |  | ​ | 28,341,301

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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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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