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Common Stock (Tables) | 12 Months Ended
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Dec. 31, 2021
Stockholders Equity Note [Abstract] |
Schedule of Number of Common Stock Reserved for Future Issuance | The Company had reserved common stock for future issuance as follows:
|  | As of December 31, |
|  | 2021 |  |  | 2020 |
Exercise of outstanding options under the 2015 and 2019 Plans |  |  | 3,620,666 |  |  |  | 2,591,456 |
Issuance of common stock options under the 2019 Plan |  |  | 922,826 |  |  |  | 975,135 |
Issuance of common stock options under the Employee Stock Purchase Plan |  |  | 602,935 |  |  |  | 357,600 |
Total |  |  | 5,146,427 |  |  |  | 3,924,191 |

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