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6. STOCKHOLDERS' EQUITY (Details-Warrant activity) - Warrants [Member] - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Number of Warrants Outstanding      
Beginning Balance 147,499,487 227,271,136  
Granted 35,184,000 78,395,012  
Exercised 0 0  
Canceled/forfeited/expired (1,486,666) (158,166,661)  
Ending Balance 181,196,821 147,499,487 227,271,136
Warrants vested and exercisable 181,196,821 147,499,487  
Weighted - Average Exercise Price Per Share      
Beginning Balance $ .089 $ 0.089  
Granted .070 0.080  
Canceled/forfeited/expired .073 0.085  
Ending Balance $ 0.085 $ .089 $ 0.089
Weighted - Average Remaining Contractual Life (Years)      
Weighted average remaining contractual life - warrants granted 1 year 25 days 9 months 4 days  
Weighted average remaining contractual life 1 year 2 months 23 days   1 year 5 months 8 days
Warrants vested and exercisable weighted average remaining contractual life 1 year 2 months 23 days 1 year 6 months