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Earnings per share ("EPS")

6 Months Ended

Jun. 30, 2019

16. Earnings per share (“EPS”)

The Company uses the two-class method of computing basic EPS due to the existence of non-vested restricted stock awards with nonforfeitable rights to dividends or dividend equivalents (referred to as participating securities). For the three and six months ended June 30, 2019 and 2018, no significant adjustments were made to net income for purposes of calculating basic and diluted EPS. The following is a reconciliation of the weighted average shares used in diluted EPS computations.

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Weighted average common shares-basic		18,834,886		18,413,756		18,790,612		18,409,331
Effect of dilutive securities
Unexercised stock options and stock purchase plan		—		327,171		259,967		318,047
Unvested restricted stock awards and units		—		94,633		128,478		83,978
Weighted average common shares-diluted		18,834,886		18,835,560		19,179,057		18,811,356

There were 1,987,907 and 413,296 weighted average outstanding stock options and restricted stock awards and units not included in the diluted EPS computation for the three months ended June 30, 2019 and 2018, respectively, and 483,731 and 259,470 weighted average outstanding stock options and restricted stock awards and units not included in the diluted EPS computation for the six months ended June 30, 2019 and 2018, respectively, because inclusion of these awards was anti-dilutive or, for performance-based and market-based restricted stock awards and units, all necessary conditions had not been satisfied by the end of the respective period.