Stock-Based Compensation - Schedule of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Number of Shares
Beginning balance (in shares)	16,197,148
Granted (in shares)	10,311,273
Exercised (in shares)	(297,702)
Forfeited (in shares)	(1,261,400)
Expired (in shares)	(387,569)
Ending balance (in shares)	24,561,750	16,197,148
Vested and expected to vest (in shares)	24,561,750
Exercisable (in shares)	11,378,906
Weighted Average Exercise Price
Beginning balance (in USD per share)	$ 2.01
Granted (in USD per share)	0.96
Exercised (in USD per share)	0.45
Forfeited (in USD per share)	2.14
Expired (in USD per share)	2.14
Ending balance (in USD per share)	1.58	$ 2.01
Vested and expected to vest (in USD per share)	1.58
Exercisable (in USD per share)	$ 2.28
Weighted Average Remaining Contractual Life (Years)
Weighted average remaining contractual life	7 years 7 months 6 days	7 years 4 months 24 days
Weighted average remaining contractual life, vested and expected to vest	7 years 7 months 6 days
Weighted average remaining contractual life, options exercisable	6 years 25 days
Aggregate Intrinsic Value (In Thousands)
Options outstanding, beginning balance	$ 1,128
Granted in period, intrinsic value	6
Exercises in period, intrinsic value	204
Forfeited in period, intrinsic value	80
Expired in period, intrinsic value	6
Options outstanding, ending balance	7,505	$ 1,128
Vested and expected to vest, intrinsic value	7,505
Options exercisable, intrinsic value	$ 2,400