Revenue (Contract Balances) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jun. 25, 2022	Jul. 01, 2023	Jun. 25, 2022
Contract With Customer, Change In Liability [Roll Forward]
Beginning contract liability	$ 983	$ 1,298	$ 1,055	$ 1,285
Revenue recognized from contract liabilities included in the beginning balance	(735)	(1,055)	(829)	(1,062)
Increases due to cash received, net of amounts recognized in revenue during the period	786	879	808	899
Ending contract liability	$ 1,034	$ 1,122	$ 1,034	$ 1,122