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1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Numerator
Net income	$ 10,775,260	$ 5,664,812	$ 16,090,531	$ 9,951,150
Denominator
Basic: Weighted-average common shares outstanding during the period	45,928,234	38,726,415	44,313,537	38,662,773
Add: Dilutive effect of stock options	1,214,839	614,813	1,005,671	647,173
Diluted	47,143,073	39,341,228	45,319,208	39,309,946
Net income per share
Basic	$ 0.23	$ 0.15	$ 0.36	$ 0.26
Diluted	$ 0.23	$ 0.14	$ 0.36	$ 0.25

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