Income taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Amount
At statutory rate	$ (2,537)
State income taxes, net of federal effect	85
Change in valuation allowance	(2,174)
IPR&D expense	3,259
Sec. 162(m) limitation on executive compensation	3,378
Stock compensation	(1,789)
Other nondeductible items	98
R&D credit	(210)
Worldwide changes in unrecognized tax benefit	22
Other	(130)
Foreign tax effects	47
Income tax expense	$ 49	$ (38)	$ (64)
Percentage
Federal statutory tax	21.00%	21.00%	21.00%
State tax, net of federal benefit	(0.70%)	7.30%	6.40%
Change in valuation allowance	18.00%	(28.30%)	(24.20%)
IPR&D expense	(26.90%)
Sec. 162(m) limitation on executive compensation	(27.90%)	(5.20%)	(10.70%)
Stock compensation	14.80%	4.80%	(8.30%)
Other nondeductible items	(0.80%)
R&D credit	1.60%
Worldwide changes in unrecognized tax benefit	(0.20%)
Other	1.00%	(4.50%)	(2.40%)
Foreign tax effects	(0.30%)
Fair value change in contingent consideration		0.00%	3.80%
Tax credits		5.30%	6.60%
Gain on escrow settlement		0	0.088
Total	(0.40%)	0.40%	1.00%
Tax Jurisdiction of Domicile [Extensible Enumeration]	United States