Note 10. Net Income Per Share

The Company presents both basic and diluted net income per share on the face of its consolidated statements of operations. Basic net income per share excludes the effect of potentially dilutive shares and is computed by dividing net income by the weighted-average number of shares of common stock outstanding for the period. Diluted net income per share is computed using the weighted-average number of shares of common stock outstanding for the period plus the effect to all potentially dilutive common shares outstanding during the period, including contingently issuable shares and certain stock options, calculated using the treasury stock method. A reconciliation of the share denominator of the basic and diluted net income per share computations is as follows (in thousands):

	Years Ended
	December 30, 2017		December 31, 2016		December 26, 2015
Weighted average common shares outstanding used in basic net income per share calculation		25,334		24,655		24,059
Potential dilutive common stock equivalents, using treasury stock method		585		498		316
Weighted average shares used in diluted net income per share calculation		25,919		25,153		24,375

For the year ended December 30, 2017, December 31, 2016, and December 26, 2015, the Company had securities outstanding which could potentially dilute basic earnings per share in the future. For the years ended December 30, 2017, December 31, 2016 and December 26, 2015, the weighted average common share equivalents consisting of stock options and restricted stock units included in the calculation of diluted net income per share were 0.6 million, 0.5 million and 0.3 million shares, respectively.