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11. SHAREHOLDERS' EQUITY (Details 3) - $ / shares
6 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Dec. 31, 2018
Outstanding Warrants 13,696,675 17,240,523 26,550,611
Average Weighted Remaining Contractual Life in Years, Outstanding 2 years 4 months 6 days    
Exercisable Warrants 13,696,675    
Weighted Average Exercise Price, Exercisable $ 0.22    
$ 0.08      
Outstanding Warrants 250,000    
Average Weighted Remaining Contractual Life in Years, Outstanding 3 years 4 months 24 days    
Exercisable Warrants 250,000    
Weighted Average Exercise Price, Exercisable $ 0.08    
$ 0.10      
Outstanding Warrants 1,265,000    
Average Weighted Remaining Contractual Life in Years, Outstanding 3 years 3 months 4 days    
Exercisable Warrants 1,265,000    
Weighted Average Exercise Price, Exercisable $ .10    
$ 0.12      
Outstanding Warrants 3,791,667    
Average Weighted Remaining Contractual Life in Years, Outstanding 2 years 5 months 8 days    
Exercisable Warrants 3,791,667    
Weighted Average Exercise Price, Exercisable $ 0.12    
$ 0.14      
Outstanding Warrants 50,000    
Average Weighted Remaining Contractual Life in Years, Outstanding 3 years 9 months 18 days    
Exercisable Warrants 50,000    
Weighted Average Exercise Price, Exercisable $ 0.14    
$ 0.15      
Outstanding Warrants 1,400,000    
Average Weighted Remaining Contractual Life in Years, Outstanding 4 years 4 months 17 days    
Exercisable Warrants 1,400,000    
Weighted Average Exercise Price, Exercisable $ 0.15    
$ 0.17      
Outstanding Warrants 10,000    
Average Weighted Remaining Contractual Life in Years, Outstanding 2 years 3 months 25 days    
Exercisable Warrants 10,000    
Weighted Average Exercise Price, Exercisable $ 0.17    
$ 0.27      
Outstanding Warrants 250,000    
Average Weighted Remaining Contractual Life in Years, Outstanding 1 year 6 months    
Exercisable Warrants 250,000    
Weighted Average Exercise Price, Exercisable $ 0.27    
$ 0.29      
Outstanding Warrants 4,400,008    
Average Weighted Remaining Contractual Life in Years, Outstanding 1 year 7 months 28 days    
Exercisable Warrants 4,400,008    
Weighted Average Exercise Price, Exercisable $ 0.29    
$ 0.30      
Outstanding Warrants 1,200,000    
Average Weighted Remaining Contractual Life in Years, Outstanding 7 months 20 days    
Exercisable Warrants 1,200,000    
Weighted Average Exercise Price, Exercisable $ .30    
$ 0.32      
Outstanding Warrants 250,000    
Average Weighted Remaining Contractual Life in Years, Outstanding 1 year 3 months    
Exercisable Warrants 250,000    
Weighted Average Exercise Price, Exercisable $ 0.32    
$ 0.42      
Outstanding Warrants 250,000    
Average Weighted Remaining Contractual Life in Years, Outstanding 1 year    
Exercisable Warrants 250,000    
Weighted Average Exercise Price, Exercisable $ 0.42    
$ 0.50      
Outstanding Warrants 480,000    
Average Weighted Remaining Contractual Life in Years, Outstanding 5 years 1 month 6 days    
Exercisable Warrants 480,000    
Weighted Average Exercise Price, Exercisable $ .50    
$ 0.55      
Outstanding Warrants 100,000    
Average Weighted Remaining Contractual Life in Years, Outstanding 6 months 29 days    
Exercisable Warrants 100,000    
Weighted Average Exercise Price, Exercisable $ 0.55