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Stock Based Compensation - Summary of Stock Option Activity Under the Plan (Details) - 2010 Plan, 2020 Plan, 2023 Plan - USD ($) $ / shares in Units, $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Number of Options, Beginning balance | 3,886,038 | 4,301,968 |
Number of Options, Granted | 3,686,059 | 257,683 |
Number of Options, Cancellations and forfeitures | (447,644) | (375,051) |
Number of Options, Exercised | (16,137) | (298,562) |
Number of Options, Ending balance | 7,108,316 | 3,886,038 | 4,301,968
Number of Options, Exercisable | 2,872,814 | 2,735,884 |
Weighted-Average Exercise Price, Beginning balance | $ 2.67 | $ 2.35 |
Weighted-Average Exercise Price, Granted | 1.86 | 5.41 |
Weighted-Average Exercise Price, Cancellations and forfeitures | 2.28 | 2 |
Weighted-Average Exercise Price, Exercised | 1.37 | 1.15 |
Weighted-Average Exercise Price, Ending balance | 2.28 | 2.67 | $ 2.35
Weighted-Average Exercise Price, Exercisable | $ 2.48 | $ 2.23 |
Weighted-Average Remaining Contractual Term | 7 years 10 months 24 days | 6 years 10 months 24 days | 7 years 8 months 12 days
Weighted-Average Remaining Contractual Term, Exercisable | 5 years 10 months 24 days | 6 years 2 months 12 days |
Aggregate Intrinsic Value, Outstanding |  | $ 5,565 | $ 9,437
Aggregate Intrinsic Value, Exercisable |  | $ 4,812 |

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