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Net Loss Per Share Attributable to Common Stockholders (Tables) | 6 Months Ended
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Jun. 30, 2021
Earnings Per Share [Abstract] |
Schedule of Net Loss Per Share, Basic and Diluted | The following tables present calculations for basic and diluted net loss per share (in thousands, except per share amounts):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Net loss | $ | (3,083) |  |  | $ | (5,476) |  |  | $ | (6,011) |  |  | $ | (16,713) |
Less accretion of redeemable convertible preferred stock | (25) |  |  | (22) |  |  | (51) |  |  | (45) |
Loss applicable to common stockholders basic and diluted | (3,108) |  |  | (5,498) |  |  | $ | (6,062) |  |  | $ | (16,758) |
Weighted-average shares used in computing net loss per share attributable to common shareholders, basic and diluted | 13,636 |  |  | 13,121 |  |  | 13,513 |  |  | 13,110 |
Net loss per share attributable to ordinary shareholders, basic and diluted | $ | (0.23) |  |  | $ | (0.42) |  |  | $ | (0.45) |  |  | $ | (1.28) |
Schedule of Securities Excluded from Computation of Net Loss Per Share | The following outstanding shares of common stock equivalents (in thousands) as of the periods presented were excluded from the computation of diluted net loss per share for the periods presented because the impact of including them would have been anti-dilutive (in thousands):
| As of June 30,
| 2021 |  | 2020
Convertible preferred stock | 35,793 |  |  | 31,755 |
Stock options | 3,305 |  |  | 3,609 |
Unvested restricted stock awards | 288 |  |  | 138 |
Common stock warrants | 50 |  |  | 42 |
Total | 39,436 |  |  | 35,544 |

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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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