Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Income Statement [Abstract]
Net revenues	$ 85,854	$ 90,057	$ 265,520	$ 266,340
Costs of products sold	49,919	52,737	153,674	156,436
Gross profit	35,935	37,320	111,846	109,904
Selling, general, and administrative expenses	26,558	25,271	80,472	77,824
Restructuring costs	1,153	165	1,431	1,330
Operating income	8,224	11,884	29,943	30,750
Other income (expense):
Interest expense	(1,119)	(636)	(3,195)	(1,393)
Other	1,671	1,223	2,965	5,006
Other income	552	587	(230)	3,613
Income before taxes	8,776	12,471	29,713	34,363
Income tax expense	2,419	2,323	8,023	6,651
Net earnings	6,357	10,148	21,690	27,712
Less: net earnings attributable to noncontrolling interests	77	30	210	483
Net earnings attributable to VPG stockholders	$ 6,280	$ 10,118	$ 21,480	$ 27,229
Basic earnings per share attributable to VPG stockholders (dollars per share)	$ 0.46	$ 0.74	$ 1.58	$ 2.00
Diluted earnings per share attributable to VPG stockholders (dollars per share)	$ 0.46	$ 0.74	$ 1.57	$ 1.99
Weighted average shares outstanding - basic (in shares)	13,600	13,649	13,596	13,645
Weighted average shares outstanding - diluted (in shares)	13,686	13,708	13,670	13,692