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8. STOCKHOLDERS' EQUITY (Details 2) - Common Stock Warrant [Member] - $ / shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Number of Warrants    
Outstanding, beginning of year 28,051,408 19,325,800
Granted 7,625,005 15,325,608
Expired 0 (300,000)
Expired 0 (6,300,000)
Outstanding, end of year 35,676,413 28,051,408
Weighted Average Exercise Price    
Outstanding, beginning of year $ 0.23 $ 0.21
Granted 0.58 0.30
Expired 0 0.77
Expired 0 0.30
Outstanding, end of year $ 0.30 $ 0.23