EARNINGS (LOSS) PER SHARE	9 Months Ended
Sep. 30, 2017
Earnings Per Share [Abstract]
EARNINGS (LOSS) PER SHARE	EARNINGS (LOSS) PER SHARE The Company calculates basic Earnings per Share ("EPS") by dividing net income by the weighted-average number of common shares outstanding for the period. Diluted EPS also reflects the potential dilution that could occur if common stock were issued for awards outstanding under the Mannatech, Incorporated 2017 Stock Incentive Plan. In determining the potential dilution effect of outstanding stock options during the three and nine months ended September 30, 2017, the Company used the quarterly and nine-month ended average common stock close price of $15.39 and $17.02 per share, respectively. For the three and nine months ended September 30, 2017, approximately 0.2 million and 0.5 million shares of the Company's common stock subject to options were excluded from the diluted EPS calculation, respectively, as the effect would have been antidilutive. In determining the potential dilution effect of outstanding stock options during the three and nine months ended September 30, 2016, the Company used the quarterly and nine-month ended average common stock closing price of $18.02 and $19.12 per share, respectively. For the three and nine months ended September 30, 2016, approximately 0.1 million shares of the Company's common stock subject to options were excluded from the diluted EPS calculation, respectively, as the effect would have been antidilutive.

EARNINGS (LOSS) PER SHARE

The Company calculates basic Earnings per Share ("EPS") by dividing net income by the weighted-average number of common shares outstanding for the period. Diluted EPS also reflects the potential dilution that could occur if common stock were issued for awards outstanding under the Mannatech, Incorporated 2017 Stock Incentive Plan. In determining the potential dilution effect of outstanding stock options during the three and nine months ended September 30, 2017, the Company used the quarterly and nine-month ended average common stock close price of $15.39 and $17.02 per share, respectively. For the three and nine months ended September 30, 2017, approximately 0.2 million and 0.5 million shares of the Company's common stock subject to options were excluded from the diluted EPS calculation, respectively, as the effect would have been antidilutive.

In determining the potential dilution effect of outstanding stock options during the three and nine months ended September 30, 2016, the Company used the quarterly and nine-month ended average common stock closing price of $18.02 and $19.12 per share, respectively. For the three and nine months ended September 30, 2016, approximately 0.1 million shares of the Company's common stock subject to options were excluded from the diluted EPS calculation, respectively, as the effect would have been antidilutive.