Business Segments and Geographical Information - Revenue Information by Geographic Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	$ 51,869	$ 56,972
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	26,054	29,179
Europe, Middle East and Africa
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	13,519	13,801
Asia/Pacific Rim
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	10,234	10,931
Americas, excluding the U.S.
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	$ 2,062	$ 3,061