Business Segments - Schedule of Revenue Information by Product (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jul. 04, 2026	Jun. 28, 2025	Jul. 04, 2026	Jun. 28, 2025
Entity Wide Information Revenue From External Customer [Line Items]
Total revenues	$ 12,566	$ 13,571	$ 24,365	$ 25,467
Distribution Rights
Entity Wide Information Revenue From External Customer [Line Items]
Revenue Recognized	300	300	700	700
Service Contract Revenues
Entity Wide Information Revenue From External Customer [Line Items]
Total revenues	305	654	277	611
Service Contract Revenues \| Distribution Rights
Entity Wide Information Revenue From External Customer [Line Items]
Revenue Recognized	$ 300	$ 700	$ 300	$ 700

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details