Balance Sheet Components - Additional Information (Details) - USD ($)	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Property Plant And Equipment [Line Items]
Depreciation	$ 1,600,000	$ 2,700,000
Property and equipment, net	14,709,000		$ 17,083,000
Accumulated amortization	14,901,000		14,511,000
Finance Leases
Property Plant And Equipment [Line Items]
Property and equipment, net	$ 0		1,600,000
Accumulated amortization			$ 900,000

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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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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