Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
Income Statement [Abstract]
Net revenues	$ 90,057	$ 81,974	$ 266,340	$ 227,902
Costs of products sold	52,737	50,129	156,436	137,637
Gross profit	37,320	31,845	109,904	90,265
Selling, general, and administrative expenses	25,271	24,580	77,824	69,216
Acquisition costs	0	0	0	1,198
Impairment of goodwill and indefinite-lived intangibles	0	0	0	1,223
Restructuring costs	165	0	1,330	0
Operating income	11,884	7,265	30,750	18,628
Other income (expense):
Interest expense	(636)	(328)	(1,393)	(906)
Other	1,223	174	5,006	421
Other income (expense)	587	(154)	3,613	(485)
Income before taxes	12,471	7,111	34,363	18,143
Income tax expense	2,323	1,662	6,651	3,688
Net earnings	10,148	5,449	27,712	14,455
Less: net earnings attributable to noncontrolling interests	30	70	483	195
Net earnings attributable to VPG stockholders	$ 10,118	$ 5,379	$ 27,229	$ 14,260
Basic earnings per share attributable to VPG stockholders (dollars per share)	$ 0.74	$ 0.39	$ 2.00	$ 1.05
Diluted earnings per share attributable to VPG stockholders (dollars per share)	$ 0.74	$ 0.39	$ 1.99	$ 1.04
Weighted average shares outstanding - basic (in shares)	13,649	13,626	13,645	13,612
Weighted average shares outstanding - diluted (in shares)	13,708	13,664	13,692	13,647