Other (Income) Expense, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Other Operating Income and Expenses, Net [Abstract]
(Gain) loss on property, plant and equipment disposals	$ 0	$ 1	$ (37)	$ 62
Loss on currency exchanges	57	82	25	104
Retirement (income) expense	49	9	31	(24)
Miscellaneous income	(6)	(12)	(11)	(31)
Other operating expense (income), net	$ 100	$ 80	$ 8	$ 111