Business Segments and Geographical Information - Revenue Information by Geographic Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	$ 48,669	$ 51,869
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	22,690	26,054
Europe, Middle East and Africa
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	11,824	13,519
Asia/Pacific Rim
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	11,950	10,234
Americas, excluding the U.S.
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	$ 2,205	$ 2,062