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1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Numerator
Net income	$ 3,425,640	$ 10,515,713	$ 25,252,438	$ 30,179,696
Denominator
Basic: Weighted-average common shares outstanding during the period	46,794,443	46,301,217	46,794,011	46,106,194
Add: Dilutive effect of stock options	103,552	8,033	39,019	454,743
Diluted	46,897,995	46,309,250	46,833,030	46,560,937
Net income per share
Basic	$ 0.07	$ 0.23	$ 0.54	$ 0.65
Diluted	$ 0.07	$ 0.23	$ 0.54	$ 0.65

X

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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