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1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Accounting Policies [Abstract]
Net income	$ 5,315,271us-gaap_NetIncomeLoss	$ 4,286,338us-gaap_NetIncomeLoss
Basic: Weighted-average common shares outstanding during the period	42,680,899us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	38,598,424us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Add: Dilutive effect of stock options	796,502us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	679,533us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Diluted	43,477,401us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	39,277,957us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Basic	$ 0.12us-gaap_EarningsPerShareBasic	$ 0.11us-gaap_EarningsPerShareBasic
Diluted	$ 0.12us-gaap_EarningsPerShareDiluted	$ 0.11us-gaap_EarningsPerShareDiluted

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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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