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Net Loss per Share | 12 Months Ended
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Dec. 31, 2021
Earnings Per Share [Abstract] |
Net Loss per Share |
14. | NET LOSS PER SHARE
The following table sets forth the basic and diluted net loss per share attributable to common stockholders for the periods presented (in thousands, except per share data):
|  | Year ended December 31, |
|  | 2021 |  |  | 2020 |
Numerator: |  |  |  |  |  |  |  |
Net loss attributable to common stockholders |  | $ | (65,011 | ) |  | $ | (26,551 | )
Denominator: |  |  |  |  |  |  |  |
Weighted average common shares outstanding—Basic |  |  | 109,055,894 |  |  |  | 102,803,202 |
Dilutive effect of potential common shares |  |  | — |  |  |  | — |
Weighted average common shares outstanding—Diluted |  |  | 109,055,894 |  |  |  | 102,803,202 |
Net loss per share attributable to common stockholders—Basic and Diluted |  | $ | (0.60 | ) |  | $ | (0.26 | )
Due to net losses for the years ended December 31, 2021 and 2020, basic and diluted net loss per share were the same, as the effect of all potentially dilutive securities would have been anti-dilutive. The following table sets forth the anti-dilutive common share equivalents for the periods listed:​​​​​​​
|  | Year ended December 31, |
|  | 2021 |  |  | 2020 |
Warrants |  |  | 7,833,332 |  |  |  | 256,605 |
Common stock options issued and outstanding |  |  | 29,238,432 |  |  |  | 31,618,135 |
Unvested restricted stock units |  |  | 7,434,743 |  |  |  | — |
Conversion of convertible notes |  |  | — |  |  |  | 16,317,560 |
Total |  |  | 44,506,507 |  |  |  | 48,192,300 |

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