Acquisition Activity (Pro Forma Information) (Details) - DTS Acquisition $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares
Business Acquisition [Line Items]
Pro forma net revenues | $	$ 331,155
Pro forma net earnings attributable to VPG stockholders | $	$ 23,602
Pro forma basic earnings per share attributable to VPG stockholders (in dollars per share) | $ / shares	$ 1.73
Pro forma diluted earnings per share attributable to VPG stockholders (in dollars per share) | $ / shares	$ 1.73