Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Income Statement [Abstract]
Net revenues	$ 90,802	$ 88,618	$ 179,666	$ 176,283
Costs of products sold	52,090	51,284	103,755	103,699
Gross profit	38,712	37,334	75,911	72,584
Selling, general, and administrative expenses	26,755	25,879	53,914	52,553
Restructuring costs	162	904	278	1,165
Operating income	11,795	10,551	21,719	18,866
Other income (expense):
Interest expense	(1,079)	(428)	(2,076)	(757)
Other	1,019	3,344	1,294	3,783
Other income (expense)	(60)	2,916	(782)	3,026
Income before taxes	11,735	13,467	20,937	21,892
Income tax expense	3,384	2,587	5,604	4,328
Net earnings	8,351	10,880	15,333	17,564
Less: net earnings attributable to noncontrolling interests	115	125	133	453
Net earnings attributable to VPG stockholders	$ 8,236	$ 10,755	$ 15,200	$ 17,111
Basic earnings per share attributable to VPG stockholders (dollars per share)	$ 0.61	$ 0.79	$ 1.12	$ 1.25
Diluted earnings per share attributable to VPG stockholders (dollars per share)	$ 0.60	$ 0.79	$ 1.11	$ 1.25
Weighted average shares outstanding - basic (in shares)	13,601	13,648	13,593	13,643
Weighted average shares outstanding - diluted (in shares)	13,670	13,692	13,661	13,684