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Common Stock (Tables) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Equity [Abstract] |  |
Schedule of Reserved Common Stock for Future Issuances | As of September 30, 2023 and December 31, 2022, the Company reserved common stock for future issuances as follows:
|  | September 30, 2023 |  |  | December 31, 2022 |
Outstanding stock option awards |  |  | 6,380,515 |  |  |  | 7,755,303 |
Shares available for future stock option grants |  |  | 9,831,161 |  |  |  | 5,382,907 |
ESPP shares available for future grants |  |  | 1,253,729 |  |  |  | 754,951 |
Total shares reserved for future issuance |  |  | 17,465,405 |  |  |  | 13,893,161 |
| As of December 31, 2022 and 2021, the Company reserved common stock for future issuances as follows:
|  | December 31, 2022 |  |  | December 31, 2021 |
Outstanding stock option awards |  |  | 7,755,303 |  |  |  | 5,056,743 |
Shares available for future stock option grants |  |  | 5,382,907 |  |  |  | 4,454,004 |
ESPP shares available for future grants |  |  | 754,951 |  |  |  | 524,106 |
Total shares reserved for future issuance |  |  | 13,893,161 |  |  |  | 10,034,853 |

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