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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 share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020
Numerator: | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Net loss | ​ | $ | (24,987) | ​ | $ | (8,465) | ​ | $ | (58,919) | ​ | $ | (25,739)
Accretion of redeemable convertible preferred stock to redemption value | ​ |  | 210 | ​ |  | (832) | ​ |  | (1,761) | ​ |  | (2,882)
Cumulative redeemable convertible preferred stock dividends | ​ |  | (451) | ​ |  | (1,412) | ​ |  | (2,747) | ​ |  | (2,987)
Net loss attributable to common stockholders—basic and diluted | ​ | $ | (25,228) | ​ | $ | (10,709) | ​ | $ | (63,427) | ​ | $ | (31,608)
Denominator: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Weighted average Class A common shares outstanding—basic and diluted | ​ | ​ | 29,463,234 | ​ | ​ | 356,074 | ​ | ​ | 10,372,225 | ​ | ​ | 354,341
Weighted average Class B common shares outstanding—basic and diluted | ​ | ​ | 5,852,865 | ​ | ​ | — | ​ | ​ | 1,972,394 | ​ | ​ | —
Total shares for EPS—basic and diluted | ​ | ​ | 35,316,099 | ​ | ​ | 356,074 | ​ | ​ | 12,344,619 | ​ | ​ | 354,341
Net loss per share attributable to Class A common stockholders—basic and diluted | ​ | ​ | (0.71) | ​ | ​ | (30.08) | ​ | ​ | (5.14) | ​ | ​ | (89.20)
Net loss per share attributable to Class B common stockholders—basic and diluted | ​ |  | (0.71) | ​ |  | — | ​ |  | (5.14) | ​ |  | —
Schedule of common shares excluded from the computation of diluted net loss per share | ​
​ | ​ | ​ | ​ | ​
​ |  | September 30,
​ |  | 2021 |  | 2020
Options to purchase common stock |  | 4,772,207 |  | 4,005,581
Warrants to purchase common stock |  | 294,965 |  | 55,872
Redeemable convertible preferred stock (as converted to common stock) |  | — |  | 26,604,306
Warrants to purchase preferred stock (as converted to warrants to purchase common stock) |  | — |  | 1,243,834
​ |  | 5,067,172 |  | 31,909,593

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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=124432515&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=124432515&loc=d3e3550-109257 + Details
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