Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Oct. 01, 2021	Sep. 30, 2022	Oct. 01, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 1,102	$ 1,672	$ 5,382	$ 5,013
Foreign currency translation adjustment	(3,257)	(1,062)	(7,824)	(3,053)
Change in pension, net of taxes of $43 and $18 in the 2022 and 2021 third quarters, respectively, and $121 and $57 in the first three quarters of 2022 and 2021, respectively	557	311	1,468	917
Other comprehensive loss	(2,700)	(751)	(6,356)	(2,136)
Comprehensive income (loss)	$ (1,598)	$ 921	$ (974)	$ 2,877