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(Loss) Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Basic and Diluted Net Loss per Share | Basic and diluted net loss per share attributable to common stockholders was calculated as follows (in thousands, except share and per share data):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
​ | ​ | 2021 | ​ | 2020 | ​ | 2021 | ​ | 2020
Numerator: | ​ | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |
Net loss | ​ | $ | (6,133) | ​ | $ | (3,227) | ​ | $ | (32,508) | ​ | $ | (10,707)
Accretion of preferred stock to redemption value | ​ |  | — | ​ |  | (217) | ​ |  | — | ​ |  | (217)
Net loss attributable to common stockholders | ​ | $ | (6,133) | ​ | $ | (3,444) | ​ | $ | (32,508) | ​ | $ | (10,924)
Denominator: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Weighted average common shares outstanding — basic and diluted | ​ |  | 20,126,672 | ​ |  | 360,356 | ​ |  | 6,975,386 | ​ |  | 396,071
Net loss per share attributable to common stockholders — basic and diluted | ​ | $ | (0.30) | ​ | $ | (9.56) | ​ | $ | (4.66) | ​ | $ | (27.58)
​
Antidilutive Securities Excluded from Computation of Earnings Per Share | ​
​ | ​ | ​ | ​ | ​
​ |  | Nine Months Ended September 30,
​ | ​ | 2021 |  | 2020
Options to purchase common stock |  | 2,657,333 |  | 961,885
Warrants to purchase redeemable convertible preferred stock (as converted to common stock) |  | — |  | 108,406
Warrants to purchase common stock | ​ | 716,131 | ​ | —
Redeemable convertible preferred stock (as converted to common stock) |  | — |  | 11,929,584
​ |  | 3,373,464 |  | 12,999,875

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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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