Income Taxes - Schedule of Reconciliation of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
$
Provision for income taxes at U.S. federal statutory rate	$ (9,225)	$ (13,701)	$ (15,995)
State and local income taxes, net of federal	0	(3,133)	(2,208)
Research and development credits		(419)	(925)
Foreign tax effects	2	0	0
Tax credits	(1,295)
Changes in valuation allowance	7,494	15,159	16,640
Stock-based compensation	2,645	1,930	1,967
Others	242	(108)	438
Executive compensation		306	152
Changes in unrecognized tax benefits	180
Other adjustments	4
Provision for income taxes	$ 47	$ 34	$ 69
%
Provision for income taxes at U.S. federal statutory rate	21.00%
State and local income taxes, net of federal	0.00%
Foreign tax effects	0.00%
Tax credits	2.95%
Changes in valuation allowance	(17.06%)
Stock-based compensation	(6.02%)
Others	(0.55%)
Changes in unrecognized tax benefits	(0.41%)
Other adjustments	(0.02%)
Provision for income taxes	(0.11%)