Balance Sheet Details - Schedule of Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property, plant and equipment, net:
Property, plant and equipment, gross	$ 28,397	$ 27,422
Less: accumulated depreciation and amortization	(17,971)	(17,394)
Less: government grants	(149)	(186)
Total property, plant and equipment, net	10,277	9,842
Machinery and equipment
Property, plant and equipment, net:
Property, plant and equipment, gross	17,090	14,278
Leasehold improvements
Property, plant and equipment, net:
Property, plant and equipment, gross	5,251	5,219
Computers and software
Property, plant and equipment, net:
Property, plant and equipment, gross	3,278	3,217
Furniture and fixtures
Property, plant and equipment, net:
Property, plant and equipment, gross	1,726	1,771
Construction in progress and other
Property, plant and equipment, net:
Property, plant and equipment, gross	$ 1,052	$ 2,937