Earnings Per Share

Basic earnings per share are computed using the weighted average number of common shares outstanding during the periods presented. Diluted earnings per share is computed using the weighted average number of common shares outstanding, adjusted to include the potentially dilutive effect of stock options and restricted stock units (see Note 10), and other potentially dilutive securities.

The following table sets forth the computation of basic and diluted earnings per share attributable to VPG stockholders (in thousands, except earnings per share):



	Years ended December 31,
	2019		2018		2017
Numerator:

Numerator for basic earnings per share:
Net earnings attributable to VPG stockholders	$	22,188	$	23,646	$	14,345
Adjustment to the numerator for net earnings:
Interest savings assuming conversion of dilutive exchangeable notes, net of tax	—		6		24
Numerator for diluted earnings per share:
Net earnings attributable to VPG stockholders	$	22,188	$	23,652	$	14,369
Denominator:
Denominator for basic earnings per share:
Weighted average shares	13,515		13,439		13,262
Effect of dilutive securities:
Exchangeable notes	—		22		145
Restricted stock units	82		74		64
Dilutive potential common shares	82		96		209
Denominator for diluted earnings per share:
Adjusted weighted average shares	13,597		13,535		13,471

Basic earnings per share attributable to VPG stockholders	$	1.64	$	1.76	$	1.08

Diluted earnings per share attributable to VPG stockholders	$	1.63	$	1.75	$	1.07