Income Taxes - Reconciliation of Effective Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Amount
Income tax at the federal statutory rate	$ (12,732)	$ (8,163)	$ (13,759)
State and local income taxes, net of federal effect	401	191	13
Foreign tax effects	500	0	500
Tax credits
Research and development tax credits	(936)	0	(215)
Other	(500)	0	(500)
Changes in valuation allowance	9,367	8,023	13,601
Nontaxable or nondeductible items
Section 162(m) limitation	1,322	2,247	1,217
Stock-based compensation	3,672	(2,003)	(65)
Other	(125)	(29)	(245)
Effective tax rate	$ 969	$ 266	$ 547
Percent
Income tax at the federal statutory rate	21.00%	21.00%	21.00%
State and local income taxes, net of federal effect (percent)	(0.70%)	(0.50%)	0.00%
Foreign tax effects	(0.80%)	0.00%	(0.80%)
Tax credits
Research and development tax credits	1.50%	0.00%	0.30%
Other	0.80%	0.00%	0.80%
Changes in valuation allowance	(15.40%)	(20.60%)	(20.80%)
Nontaxable or nondeductible items
Section 162(m) limitation	(2.20%)	(5.80%)	(1.90%)
Stock-based compensation	(6.10%)	5.20%	0.10%
Other	0.20%	0.10%	0.40%
Effective tax rate	(1.70%)	(0.60%)	(0.90%)