Revenue - Primary Geography Markets (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Disaggregation of Revenue [Line Items]
Total net revenues	$ 10,301	$ 9,307	$ 21,843	$ 13,752
Products Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Total net revenues	10,301	9,307	21,843	13,752
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	662	1,656	2,276	1,950
Asia
Disaggregation of Revenue [Line Items]
Total net revenues	9,628	7,651	19,556	11,802
Europe
Disaggregation of Revenue [Line Items]
Total net revenues	$ 11	$ 0	$ 11	$ 0