Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Total VPG Inc. Stockholders' Equity	Common Stock	Class B Convertible Common Stock	Treasury Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
Balance at beginning of period at Dec. 31, 2019	$ 241,752	$ 241,360	$ 1,312	$ 103	$ (8,765)	$ 197,125	$ 89,288	$ (37,703)	$ 392
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	10,800	10,787					10,787		13
Other comprehensive income (loss)	5,032	5,032						5,032
Share-based compensation expense	1,387	1,387				1,387
Restricted stock issuances	(791)	(791)	5			(796)
Purchase of noncontrolling interest	253	(48)				(48)			301
Distributions to noncontrolling interests	(70)								(70)
Balance at end of period at Dec. 31, 2020	257,857	257,823	1,317	103	(8,765)	197,764	100,075	(32,671)	34
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	20,443	20,221					20,221		222
Other comprehensive income (loss)	(2,337)	(2,337)						(2,337)
Share-based compensation expense	2,244	2,244				2,244
Restricted stock issuances	(852)	(852)	5			(857)
Distributions to noncontrolling interests	(313)								(313)
Balance at end of period at Dec. 31, 2021	277,042	277,099	1,322	103	(8,765)	199,151	120,296	(35,008)	(57)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	36,553	36,063					36,063		490
Other comprehensive income (loss)	(5,892)	(5,892)						(5,892)
Share-based compensation expense	2,439	2,439				2,439
Restricted stock issuances	(423)	(423)	3			(426)
Repurchase of treasury stock	(2,739)	(2,739)			(2,739)
Distributions to noncontrolling interests	(458)								(458)
Balance at end of period at Dec. 31, 2022	$ 306,522	$ 306,547	$ 1,325	$ 103	$ (11,504)	$ 201,164	$ 156,359	$ (40,900)	$ (25)