Business Segments - Revenue Information by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	$ 12,484	$ 11,581	$ 37,951	$ 35,973
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	5,588	5,464	16,631	16,383
Europe, Middle East and Africa
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	4,033	2,802	10,547	9,167
Asia/Pacific Rim
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	2,066	2,708	9,101	8,750
Americas, excluding the U.S.
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenues	$ 797	$ 607	$ 1,672	$ 1,673