Income Taxes - Reconciliation of Federal Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Taxes
Income tax benefit	$ 0	$ 0	$ 0
Reconciliation of the U.S. federal statutory income tax rate to the Company's effective income tax rate
Federal statutory income tax rate	21.00%	21.00%	21.00%
Research and development tax credits	3.50%	3.60%	5.40%
State taxes, net of federal benefit	1.80%	2.00%	2.60%
Stock-based compensation	(1.90%)	(2.30%)	(2.10%)
Derivative liability			2.70%
Change in tax rate		(0.40%)	1.40%
Debt extinguishment	(1.90%)
Other	(1.10%)	(0.20%)	(0.10%)
Change in valuation allowance	(21.40%)	(23.70%)	(30.90%)