Revenue - Primary Geography Markets (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
Disaggregation of Revenue [Line Items]
Total net revenues	$ 10,750	$ 7,998	$ 24,502	$ 22,605
Products Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Total net revenues	10,750	7,998	24,502	22,605
Products and Services Transferred Over Time
Disaggregation of Revenue [Line Items]
Total net revenues	0	0	0	0
United States
Disaggregation of Revenue [Line Items]
Total net revenues	1,377	220	3,327	2,708
Asia
Disaggregation of Revenue [Line Items]
Total net revenues	9,273	7,778	21,075	16,047
Europe
Disaggregation of Revenue [Line Items]
Total net revenues	$ 100	$ 0	$ 100	$ 3,850