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Net Loss Per Share | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Net Loss Per Share | 11. Net Loss Per Share The Company calculates basic and diluted net loss per share attributable to common stockholders in conformity with the two-class method required for participating securities. For the years ended December 31, 2020 and 2019, the Company had voting and non-voting common stock outstanding. Since the rights of the voting and non-voting common stock are identical, except with respect to voting, the undistributed losses of the Company have been allocated on a proportionate basis to the two classes. Diluted net loss per share is calculated using the if-converted method, which assumes conversion of all non-voting common stock to voting common stock.
|  | Year ended December 31, 2020 |
|  | Voting common stock |  |  | Non-voting common stock |
Basic net loss per share: |  |  |  |  |  |  |  |
Numerator |  |  |  |  |  |  |  |
Allocation of undistributed losses attributable to common stockholders |  | $ | (25,090 | ) |  | $ | (8,249 | )
Denominator |  |  |  |  |  |  |  |
Weighted average number of shares used in basic per share computation |  |  | 17,417,900 |  |  |  | 5,727,327 |
Net loss per share, basic |  | $ | (1.44 | ) |  | $ | (1.44 | )
Diluted net loss per share: |  |  |  |  |  |  |  |
Numerator |  |  |  |  |  |  |  |
Allocation of undistributed losses for basic computation |  | $ | (25,090 | ) |  | $ | (8,249 | )
Reallocation of undistributed losses as a result of conversion of non-voting to voting common shares |  |  | (8,249 | ) |  |  | — |
Allocation of undistributed losses |  | $ | (33,339 | ) |  | $ | (8,249 | )
Denominator |  |  |  |  |  |  |  |
Weighted average number of shares used in basic per share computation |  |  | 17,417,900 |  |  |  | 5,727,327 |
Add: Conversion of non-voting to voting common shares outstanding |  |  | 5,727,327 |  |  |  | — |
Weighted average number of shares used in diluted per share computation |  |  | 23,145,227 |  |  |  | 5,727,327 |
Net loss per share, diluted |  | $ | (1.44 | ) |  | $ | (1.44 | )
|  | Year ended December 31, 2019 |
|  | Voting common stock |  |  | Non-voting common stock |
Basic net loss per share: |  |  |  |  |  |  |  |
Numerator |  |  |  |  |  |  |  |
Allocation of undistributed losses attributable to common stockholders |  | $ | (17,693 | ) |  | $ | (4,576 | )
Denominator |  |  |  |  |  |  |  |
Weighted average number of shares used in basic per share computation |  |  | 4,345,530 |  |  |  | 1,123,861 |
Net loss per share, basic |  | $ | (4.07 | ) |  | $ | (4.07 | )
Diluted net loss per share: |  |  |  |  |  |  |  |
Numerator |  |  |  |  |  |  |  |
Allocation of undistributed losses for basic computation |  | $ | (17,693 | ) |  | $ | (4,576 | )
Reallocation of undistributed losses as a result of conversion of non-voting to voting common shares |  |  | (4,576 | ) |  |  | — |
Allocation of undistributed losses |  | $ | (22,269 | ) |  | $ | (4,576 | )
Denominator |  |  |  |  |  |  |  |
Weighted average number of shares used in basic per share computation |  |  | 4,345,530 |  |  |  | 1,123,861 |
Add: Conversion of non-voting to voting common shares outstanding |  |  | 1,123,861 |  |  |  | — |
Weighted average number of shares used in diluted per share computation |  |  | 5,469,391 |  |  |  | 1,123,861 |
Net loss per share, diluted |  | $ | (4.07 | ) |  | $ | (4.07 | )
The following outstanding potentially dilutive shares have been excluded from the calculation of diluted net loss per share, as their effect is anti-dilutive:
|  | For the Year Ended December 31, |
|  | 2020 |  |  | 2019 |
Stock options to purchase common stock |  |  | 2,900,479 |  |  |  | 2,129,632 |
Non-vested founder stock |  |  | 465,801 |  |  |  | 1,388,977 |
Total |  |  | 3,366,280 |  |  |  | 3,518,609 |

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