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Loss Per Share | 9 Months Ended
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Sep. 30, 2023
Loss Per Share [Abstract] |
Loss Per Share | 9. Loss Per Share Basic and diluted net loss per share attributable to common stockholders was calculated for the periods indicated (in thousands, except share and per share data):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended |  | Nine months ended
​ | ​ | September 30, | ​ | September 30,
​ | ​ | 2023 | ​ | 2022 | ​ | 2023 | ​ | 2022
Numerator: | ​ | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |
Net loss | ​ | $ | (9,011) | ​ | $ | (9,830) | ​ | $ | (32,036) | ​ | $ | (30,892)
Denominator: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Weighted average common shares outstanding — basic and diluted | ​ |  | 20,801,350 | ​ |  | 20,576,838 | ​ |  | 20,730,024 | ​ |  | 20,512,254
Net loss per share attributable to common stockholders — basic and diluted | ​ | $ | (0.43) | ​ | $ | (0.48) | ​ | $ | (1.55) | ​ | $ | (1.51)
​ The Company’s potentially dilutive securities, which include stock options and warrants to purchase shares of common stock, have been excluded from the computation of diluted net loss per share attributable to common stockholders, as the effect would be to reduce the net loss per share attributable to common stockholders. Therefore, the weighted average number of common shares outstanding used to calculate both basic and diluted net loss per share attributable to common stockholders is the same. The Company excluded the following potential common shares, presented based on amounts outstanding at each period end, from the computation of diluted net loss per share attributable to common stockholders for the periods indicated because including them would have had an anti-dilutive effect: ​
​ | ​ | ​ | ​ | ​
​ |  | Nine months ended
​ | ​ | September 30,
​ | ​ | 2023 |  | 2022
Options to purchase common stock |  | 4,464,096 |  | 3,723,499
Warrants to purchase common stock | ​ | 716,131 | ​ | 716,131
​ |  | 5,180,227 |  | 4,439,630
​

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//260/tableOfContent Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-3 + Details
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