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Stock-based Compensation - Narrative (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 12, 2021 | Feb. 28, 2022 | Dec. 31, 2024 | Dec. 31, 2023 | May 08, 2023 | Mar. 22, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Issuance date fair value |  |  |  | $ 112 |  |
Consulting expense |  |  | $ 6,493 | 8,480 |  |
Share-Based Payment Arrangement, Nonemployee |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Issuance of common stock for consulting services (in shares) |  |  | 0 |  |  |
Issuance date fair value |  |  |  | $ 100 |  |
Expiration period |  |  |  | 6 months |  |
Consulting expense |  |  |  | $ 100 |  |
Share-Based Payment Arrangement, Nonemployee | Common Class A |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Issuance of common stock for consulting services (in shares) |  |  |  | 193 |  |
Restricted Stock Units |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation cost, period of recognition |  |  | 8 months 12 days |  |  |
Unrecognized compensation cost |  |  | $ 4,300 |  |  |
Options |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation cost for unvested options |  |  | $ 100 |  |  |
Unrecognized compensation cost, period of recognition |  |  | 2 months 12 days |  |  |
Consulting expense |  |  | $ 289 | $ 352 |  |
Outstanding Vested and Expected to Vest RSUs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation cost |  |  | $ 50 |  |  |
2021 Equity Incentive Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Evergreen provision, percentage of outstanding shares | 3.00% |  |  |  |  |
2021 Equity Incentive Plan | Common Class A |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares reserved for future issuance (in shares) | 8,547 |  |  |  |  |
2021 Equity Incentive Plan | Restricted Stock Units |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Remaining shares available for grant (in shares) |  |  | 23,392 |  |  |
Evergreen Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of additional shares available for grant (in shares) |  |  | 17,751 |  |  |
Legacy Stock Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of additional shares available for grant (in shares) |  |  | 321 |  |  |
2021 Employee Stock Purchase Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Evergreen provision, percentage of outstanding shares | 0.50% |  |  |  |  |
Number of additional shares available for grant (in shares) |  |  | 2,958 |  |  |
Remaining shares available for grant (in shares) |  |  | 5,954 |  |  |
Issuance of common stock upon purchase of ESPP (in shares) |  |  | 0 |  |  |
Outstanding liability |  |  | $ 4 |  |  |
2021 Employee Stock Purchase Plan | Common Class A |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares reserved for future issuance (in shares) | 2,280 |  |  |  |  |
2022 Inducement Equity Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Remaining shares available for grant (in shares) |  |  | 8,230 |  |  |
Vesting period |  | 4 years |  |  |  |
2022 Inducement Equity Plan | Common Class A |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares reserved for future issuance (in shares) |  | 5,715 |  |  | 11,429 | 10,000

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