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15. STOCK OPTIONS AND WARRANTS (Details-Assumptions) - Employee Stock Option [Member]
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Expected volatility 169.62% 138.71%
Risk-free interest rate 0.66% 1.52%
Expected dividend yield 0.00% 0.00%
Maximum [Member]    
Expected term 7 years 5 years 6 months
Minimum [Member]    
Expected term   3 years