Composition of Certain Consolidated Financial Statement Items - Property and Equipment, net (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 17,660	$ 11,739
Less: accumulated depreciation and amortization	(9,004)	(6,694)
Total property and equipment, net	8,656	5,045
Laboratory, manufacturing and computer equipment, and furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	3,260	2,874
Rental equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	1,313	1,082
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	4,941	4,941
Evaluation units
Property, Plant and Equipment [Line Items]
Total property and equipment	2,475	2,842
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 5,671	$ 0