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Net Loss per Share Attributable to Common Stockholders | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Net Loss per Share Attributable to Common Stockholders |  |
Net Loss per Share Attributable to Common Stockholders | 6. Net Loss per Share Attributable to Common Stockholders The following table presents the calculation of basic and diluted net loss per share: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended
​ | ​ | March 31,
​ |  | 2023 |  | 2022
Numerator: | ​ | ​ | ​ | ​ | ​ | ​
Net loss attributable to common stockholders | ​ | $ | (2,547,450) | ​ | $ | (1,692,062)
​ | ​ | ​ | ​ | ​ | ​ | ​
Denominator: | ​ | ​ | ​ | ​ | ​ | ​
Weighted average shares used in computing net loss per share attributable to common stockholders | ​ | ​ | 5,044,775 | ​ | ​ | 4,549,686
​ | ​ | ​ | ​ | ​ | ​ | ​
Net loss per share attributable to common stockholders | ​ | $ | (0.50) | ​ | $ | (0.37)
​ The following potentially dilutive securities were excluded from the computation of diluted net loss per share calculations for the periods presented because the impact of including them would have been anti-dilutive: ​
​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | March 31,
​ |  | 2023 |  | 2022
Options, RSUs, and grants | ​ | 735,001 | ​ | 521,932
Warrants | ​ | 1,673,968 | ​ | 1,277,834
Total | ​ | 2,408,969 | ​ | 1,799,766
​ | 9. Net Loss per Share Attributable to Common Stockholders The following table presents the calculation of basic and diluted net loss per share: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the years ended December 31,
​ |  | 2022 |  | 2021
Numerator: | ​ | ​ | ​ | ​ | ​ | ​
Net loss attributable to common stockholders | ​ | $ | (12,091,540) | ​ | $ | (9,057,163)
​ | ​ | ​ | ​ | ​ | ​ | ​
Denominator: | ​ | ​ | ​ | ​ | ​ | ​
Weighted average shares used in computing net loss per share attributable to common stockholders | ​ |  | 4,732,774 | ​ | ​ | 3,767,472
​ | ​ | ​ | ​ | ​ | ​ | ​
Net loss per share attributable to common stockholders | ​ | $ | (2.55) | ​ | $ | (2.40)
​ The following potentially dilutive securities were excluded from the computation of diluted net loss per share calculations for the periods presented because the impact of including them would have been anti-dilutive: ​
​ | ​ | ​ | ​ | ​
​ | ​ | For the years ended December 31,
​ |  | 2022 |  | 2021
Options, RSUs, and grants | ​ | 744,373 | ​ | 555,581
Warrants | ​ | 1,676,118 | ​ | 1,729,093
Total dilutive securities | ​ | 2,420,491 | ​ | 2,284,674
​

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