Business Segments and Geographical Information - Revenue Information by Geographic Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	$ 53,903	$ 36,347
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	25,561	19,312
Europe
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	13,573	8,006
Americas, excluding the U.S.
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	2,543	1,967
Asia/Pacific Rim
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	$ 12,226	$ 7,062