Stock-based Compensation - Narrative (Details) - USD ($)		1 Months Ended	3 Months Ended			9 Months Ended
	Aug. 12, 2021	Feb. 28, 2022	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	May 08, 2023	Mar. 22, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock for consulting services					$ 112,000
Consulting expense			$ 1,707,000	$ 2,156,000		$ 4,885,000	$ 6,453,000
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 of common stock for consulting services							$ 100,000
Expiration period							6 months
Consulting expense							$ 100,000
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)							2,700
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost, period of recognition						9 months 18 days
Unrecognized compensation cost			5,900,000			$ 5,900,000
Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost for unvested options			100,000			$ 100,000
Unrecognized compensation cost, period of recognition						4 months 24 days
Consulting expense			71,000	$ 81,000		$ 216,000	$ 269,000
Outstanding Vested and Expected to Vest RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost			$ 36,900			$ 36,900
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)	119,658
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)			324,302			324,302
Evergreen Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares available for grant (in shares)						248,508
Legacy Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares available for grant (in shares)						4,502
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)						41,418
Remaining shares available for grant (in shares)			83,354			83,354
Issuance of common stock upon purchase of ESPP (in shares)						0
Outstanding liability			$ 4,000			$ 4,000
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)	31,909
2022 Inducement Equity Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining shares available for grant (in shares)			115,036			115,036
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)		80,000						160,000	140,000