Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 20,765	$ 18,208
Accumulated depreciation	(14,576)	(14,142)
Property and equipment, net	6,189	4,066
Building and Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	583	1,304
Furniture, Fixtures and Office Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,411	1,379
Plant and Machinery
Property Plant And Equipment [Line Items]
Property and equipment, gross	16,464	13,244
Purchased Software
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 2,307	$ 2,281

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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