BALANCE SHEET COMPONENTS - Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Property and equipment, gross	$ 89,234	$ 86,369
Less: accumulated depreciation and amortization	(47,511)	(46,195)
Total	41,723	40,174
Computer Equipment
Property and equipment, gross	11,930	11,853
Software
Property and equipment, gross	5,407	5,395
Furniture, Fixtures and Equipment
Property and equipment, gross	2,488	2,484
Leasehold Improvements
Property and equipment, gross	6,469	6,467
Laboratory and Other Equipment
Property and equipment, gross	4,494	4,431
Test Equipment
Property and equipment, gross	28,403	28,403
In-Progress DFI System Assets
Property and equipment, gross	23,596	22,231
In-Progress CV System and Other Assets
Property and equipment, gross	$ 6,447	$ 5,105

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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