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, | | 2015 | | 2014 | | 2013 | Numerator: | | | | | | | | | | | | Numerator for basic earnings per share: | | | | | | Net (loss) earnings attributable to VPG stockholders | $ | (13,008 | ) | | $ | 3,080 |
| | $ | 4,436 |
| Adjustment to the numerator for net earnings: | | | | | | Interest savings assuming conversion of dilutive exchangeable notes, net of tax | — |
| | 6 |
| | 15 |
| Numerator for diluted earnings per share: | | | | | | Net (loss) earnings attributable to VPG stockholders | $ | (13,008 | ) | | $ | 3,086 |
| | $ | 4,451 |
| Denominator: | | | | | | Denominator for basic earnings per share: | | | | | | Weighted average shares | 13,485 |
| | 13,755 |
| | 13,563 |
| Effect of dilutive securities: | | | | | | Exchangeable notes | — |
| | 181 |
| | 311 |
| Employee stock options | — |
| | 1 |
| | 1 |
| Restricted stock units | — |
| | 40 |
| | 69 |
| Dilutive potential common shares | — |
| | 222 |
| | 381 |
| Denominator for diluted earnings per share: | | | | | | Adjusted weighted average shares | 13,485 |
| | 13,977 |
| | 13,944 |
| | | | | | | Basic (loss) earnings per share attributable to VPG stockholders | $ | (0.96 | ) | | $ | 0.22 |
| | $ | 0.33 |
| | | | | | | Diluted (loss) earnings per share attributable to VPG stockholders | $ | (0.96 | ) | | $ | 0.22 |
| | $ | 0.32 |
|
Diluted earnings per share for the periods presented do not reflect the following weighted average potential common shares, as the effect would be antidilutive (in thousands): | | | | | | | | | | | Years ended December 31, | | 2015 | | 2014 | | 2013 | Weighted average employee stock options | 18 |
| | 18 |
| | 23 |
| Weighted average exchangeable notes | 181 |
| | — |
| | — |
| Weighted average restricted stock units | 36 |
| | — |
| | — |
|
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