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1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Numerator
Net income	$ 10,515,713	$ 10,679,422	$ 30,179,696	$ 26,769,953
Denominator
Basic: Weighted-average common shares outstanding during the period	46,301,217	46,007,120	46,106,194	44,884,268
Add: Dilutive effect of stock options	8,033	898,242	454,743	969,862
Diluted	46,309,250	46,905,362	46,560,937	45,854,130
Net income per share
Basic	$ 0.23	$ 0.23	$ 0.65	$ 0.6
Diluted	$ 0.23	$ 0.23	$ 0.65	$ 0.58

X

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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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