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Property and equipment, net - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Property, Plant, and Equipment [Line Items]
Property plant and equipment, gross	$ 28,779	$ 28,268
Less: Accumulated depreciation	(20,618)	(19,296)
Property plant and equipment, net	8,161	8,972
Manufacturing and laboratory equipment
Property, Plant, and Equipment [Line Items]
Property plant and equipment, gross	15,826	15,356
Computer hardware and software
Property, Plant, and Equipment [Line Items]
Property plant and equipment, gross	1,934	1,911
Office furniture and fixtures
Property, Plant, and Equipment [Line Items]
Property plant and equipment, gross	682	682
Leasehold improvements
Property, Plant, and Equipment [Line Items]
Property plant and equipment, gross	9,447	9,447
Construction-in-process
Property, Plant, and Equipment [Line Items]
Property plant and equipment, gross	$ 890	$ 872

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