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13. STOCK-BASED COMPENSATION (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation [Abstract]
Aggregate intrinsic value of options outstanding and exercisable	$ 1,639,182
Intrinsic value of options exercised	$ 236,535	$ 400,954
Issued common stock upon cashless exercise, shares	182,500	223,000
Issued common stock upon cashless exercise, option	$ 145,813	$ 97,244

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Number of share options (or share units) exercised during the current period.

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Value of stock issued as a result of the exercise of stock options.

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