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Net Loss per Share Attributable to Common Stock | 9 Months Ended
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Sep. 30, 2022
Net Loss per Share Attributable to Common Stock |
Net Loss per Share Attributable to Common Stock | Note 15. Net Loss per Share Attributable to Common Stock Basic loss per share of common stock is computed by dividing net loss attributable to common stockholders by the weighted average number of shares of common stock outstanding for the period. Diluted loss per share is calculated by adjusting the weighted-average number of shares outstanding for the dilutive effect of common stock equivalents outstanding for the period, determined using the treasury-stock method. Diluted loss per share excludes, when applicable, the potential impact of stock options, unvested shares of restricted stock awards, and common stock warrants because their effect would be anti-dilutive due to net loss. The calculation of basic and diluted net loss per share attributable to common stock was as follows (amounts in thousands except share data):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended |  | Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021
Numerator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net loss attributable to common stock—basic and diluted | ​ | $ | (6,012) | ​ | $ | (3,373) | ​ | $ | (17,678) | ​ | $ | (8,865)
Denominator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average basic and diluted shares outstanding | ​ | ​ | 15,804,644 | ​ | ​ | 14,312,675 | ​ | ​ | 16,054,025 | ​ | ​ | 13,948,862
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net loss per share attributable to common stock—basic and diluted | ​ | $ | (0.38) | ​ | $ | (0.24) | ​ | $ | (1.10) | ​ | $ | (0.64)
​ The following outstanding shares of common stock equivalents were excluded from the computation of the diluted net loss per share attributable to common stock for the periods presented because their effect would have been anti-dilutive: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended |  | Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021
Stock options | ​ | 147,707 | ​ | 43,996 | ​ | 147,707 | ​ | 43,966
Non-vested restricted stock awards | ​ | 1,186,136 | ​ | 529,997 | ​ | 1,186,136 | ​ | 529,997
Common stock warrants | ​ | 240,100 | ​ | 240,100 | ​ | 240,100 | ​ | 240,100
​

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI https://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details
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