Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator for diluted earnings per share:
Net earnings attributable to VPG stockholders, basic	$ 20,221	$ 10,787	$ 22,188
Net earnings attributable to VPG stockholders, diluted	$ 20,221	$ 10,787	$ 22,188
Denominator:
Weighted average shares (in shares)	13,616	13,566	13,515
Effect of dilutive securities:
Restricted stock units (shares)	41	57	82
Dilutive potential common shares (in shares)	41	57	82
Denominator for diluted earnings per share:
Adjusted weighted average shares (in shares)	13,657	13,623	13,597
Basic earnings per share attributable to VPG stockholders (in dollars per share)	$ 1.49	$ 0.80	$ 1.64
Diluted earnings per share attributable to VPG stockholders (in dollars per share)	$ 1.48	$ 0.79	$ 1.63