STOCK OPTIONS (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Number of Options
Outstanding at the beginning of the period (in shares)	4,273,000	5,107,000		5,107,000
Exercised (in shares)	1,470,879	784,000		2,254,879	0
Forfeited or expired (in shares)		(50,000)
Outstanding at the end of the period (in shares)		4,273,000
Exercisable at the end of the period (in shares)	2,802,121			2,802,121
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 0.63	$ 0.57		$ 0.57
Weighted average exercised (in dollars per share)	0.39	0.21		0.33
Forfeited or expired (in dollars per share)		0.20
Outstanding at the end of the period (in dollars per share)	$ 0.76	$ 0.63		$ 0.76
Weighted-Average Remaining Contractual Term
Exercisable at the end of the period				2 years 7 months 10 days
Aggregate Intrinsic Value
Exercisable at the end of the period	$ 1,282,440			$ 1,282,440
Assumptions used to estimate the fair value of stock options
Exercised (in shares)	1,470,879	784,000		2,254,879	0
Weighted average exercised (in dollars per share)	$ 0.39	$ 0.21		$ 0.33
Total intrinsic value	$ 714,782			$ 813,800
Number of Options
Nonvested at the beginning of the period (in shares)		990,000		990,000
Vested (in shares)				(990,000)
Weighted-Average Grant-Date Fair Value
Nonvested at the beginning of the period (in dollars per share)		$ 0.16		$ 0.16
Vested (in dollars per share)				$ 0.16
Disclosures for share-based compensation cost
Total compensation costs recognized for stock-based employee compensation awards	$ 0		$ 37,376	$ 75,945	$ 165,176
Costs recognized for stock-based compensation awards for services performed by outside parties				29,400	0
Cash received from options exercised				$ 183,507	$ 0