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Net Loss Per Share Attributable to Common Stockholders (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Schedule of Basic and Diluted Net Loss Per Share | The following table shows the computation of basic and diluted net loss per share (in thousands, except share and per share data):
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Net loss |  | $ | (9,615 | ) |  | $ | (2,258 | ) |  | $ | (36,935 | ) |  | $ | (5,805 | )
Accretion of redeemable convertible preferred stock to redemption value and cumulative preferred stock dividends |  |  | (1,322 | ) |  |  | (461 | ) |  |  | (4,548 | ) |  |  | (1,352 | )
Net loss attributable to common stockholders |  |  | (10,937 | ) |  |  | (2,719 | ) |  |  | (41,483 | ) |  |  | (7,157 | )
Weighted-average common shares used in computed net loss per share attributable to common stockholders, basic and diluted |  |  | 15,585,611 |  |  |  | 1,863,860 |  |  |  | 7,554,300 |  |  |  | 1,859,713 |
Net loss per share attributable to common stockholders, basic and diluted |  | $ | (0.70 | ) |  | $ | (1.46 | ) |  | $ | (5.49 | ) |  | $ | (3.85 | )
Schedule of Antidilutive Securities Excluded from Computation of Net Loss Per Share Attributable to Common Stockholders | The following outstanding shares of potentially dilutive securities were excluded from the computation of the diluted net loss per share attributable to common stockholders for the periods presented because their effect would have been anti-dilutive:
|  | Three and Nine Months Ended September 30, |
|  | 2021 |  |  | 2020 |
Common stock options |  |  | 2,737,315 |  |  |  | 366,501 |
Unvested restricted stock awards |  |  | 348,639 |  |  |  | 117,556 |
Redeemable convertible preferred stock |  |  | — |  |  |  | 3,999,133 |
Total potentially dilutive shares |  |  | 3,085,954 |  |  |  | 4,483,190 |

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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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