Other Accrued Expenses and Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Accrued Liabilities And Other Liabilities Current [Abstract]
Accrued professional fees	$ 563	$ 576
Accrued warranties	382	377
Customer deposits	224	149
Rental payments due to landlord		922
Accrued restructuring	31	294
Other accrued expenses	1,717	1,456
Total	$ 2,917	$ 3,774