Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Income Statement [Abstract]
Net revenues	$ 88,618	$ 75,339	$ 176,283	$ 145,928
Costs of products sold	51,284	45,541	103,699	87,508
Gross profit	37,334	29,798	72,584	58,420
Selling, general, and administrative expenses	25,879	22,453	52,553	44,636
Acquisition costs	0	1,198	0	1,198
Impairment of goodwill and indefinite-lived intangibles	0	1,223	0	1,223
Restructuring costs	904	0	1,165	0
Operating income	10,551	4,924	18,866	11,363
Other income (expense):
Interest expense	(428)	(273)	(757)	(578)
Other	3,344	(326)	3,783	247
Other income (expense)	2,916	(599)	3,026	(331)
Income before taxes	13,467	4,325	21,892	11,032
Income tax expense	2,587	262	4,328	2,026
Net earnings	10,880	4,063	17,564	9,006
Less: net earnings attributable to noncontrolling interests	125	143	453	125
Net earnings attributable to VPG stockholders	$ 10,755	$ 3,920	$ 17,111	$ 8,881
Basic earnings per share attributable to VPG stockholders (dollars per share)	$ 0.79	$ 0.29	$ 1.25	$ 0.65
Diluted earnings per share attributable to VPG stockholders (dollars per share)	$ 0.79	$ 0.29	$ 1.25	$ 0.65
Weighted average shares outstanding - basic (in shares)	13,648	13,618	13,643	13,605
Weighted average shares outstanding - diluted (in shares)	13,692	13,646	13,684	13,638