Business Segments - Schedule of Revenue Information by Product (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Entity Wide Information Revenue From External Customer [Line Items]
Total revenues	$ 12,850	$ 14,635	$ 39,411	$ 41,777
Distribution Rights [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenue Recognized	400	400	1,100	1,000
Service Contract Revenues
Entity Wide Information Revenue From External Customer [Line Items]
Total revenues	409	358	1,174	1,122
Service Contract Revenues | Distribution Rights [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenue Recognized	$ 364	$ 351	$ 1,091	$ 985