Earnings (Loss) Per Share

9 Months Ended

Sep. 30, 2019

Basic earnings (loss) per share represents net income (loss) for the period divided by the weighted average number of shares of common stock outstanding for the period.

The following are the number of shares of common stock used to compute the basic and diluted earnings (loss) per share for each period:



	Three Months Ended September 30,		Nine Months Ended September 30,
	2019	2018	2019	2018
Weighted average shares used in basic computations	42,988,829	42,894,474	42,969,797	42,889,430
Dilutive effect of stock options and restricted stock units	519,849	22,756	204,554	15,843
Weighted average shares used in diluted computations	43,508,678	42,917,230	43,174,351	42,905,273

For the three and nine months ended September 30, 2019, there were 324,495 and 525,012 shares, respectively, not included in the computation of diluted weighted average shares because their effect would have been antidilutive. For the three and nine months ended September 30, 2018, there were 66,619 and 135,780 shares, respectively, not included in the computation of diluted weighted average shares because their effect would have been antidilutive.