Stockholders' Equity - Summary of Stock Option Activity (Details) - Equity Incentive Plan - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares, outstanding beginning balance	10,737,203
Number of shares, granted	2,039,892
Number of shares, exercised	(3,719)
Number of shares, forfeited	(1,297,700)
Number of shares, outstanding ending balance	11,475,676	10,737,203
Number of shares, exercisable	5,217,009
Number of shares, vested and expected to vest	11,475,676
Weighted-average exercise price, outstanding beginning balance	$ 8.22
Weighted-average exercise price, granted	1.95
Weighted-average exercise price, exercised	1.74
Weighted-average exercise price, forfeited	14.02
Weighted-average exercise price, outstanding ending balance	6.45	$ 8.22
Weighted-average exercise price, exercisable	10.99
Weighted-average exercise price, vested and expected to vest	$ 6.45
Weighted-average remaining contractual term (in years), outstanding balance	7 years 2 months 12 days	6 years 7 months 6 days
Weighted-average remaining contractual term (in years), exercisable	5 years 1 month 6 days
Weighted-average remaining contractual term (in years), vested and expected to vest	7 years 2 months 12 days
Aggregate intrinsic value, outstanding balance	$ 1,072	$ 134
Aggregate intrinsic value, exercisable	29
Aggregate intrinsic value, vested and expected to vest	$ 1,072