Consolidated Condensed Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Statement of Comprehensive Income [Abstract]
Net earnings	$ 10,880	$ 4,063	$ 17,564	$ 9,006
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	(7,943)	607	(9,735)	(1,193)
Pension and other postretirement actuarial items	81	109	162	318
Other comprehensive loss	(7,862)	716	(9,573)	(875)
Comprehensive income	3,018	4,779	7,991	8,131
Less: comprehensive income attributable to noncontrolling interests	125	143	453	125
Comprehensive income attributable to VPG stockholders	$ 2,893	$ 4,636	$ 7,538	$ 8,006