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9. SHAREHOLDERS' EQUITY (Details 1) - $ / shares
6 Months Ended
Jun. 30, 2019
Dec. 31, 2018
Dec. 31, 2017
Outstanding option, number 620,000 320,000 200,000
Average weighted remaining contractual life in years, option 4 years 6 months 14 days    
Exercisable options, number 620,000    
Weighted average exercise price, exercisable options $ 0.32    
0.05 Range [Member]      
Outstanding option, number 20,000    
Average weighted remaining contractual life in years, option 1 year 6 months 11 days    
Exercisable options, number 20,000    
Weighted average exercise price, exercisable options $ 0.05    
0.10 Range [Member]      
Outstanding option, number 70,000    
Average weighted remaining contractual life in years, option 5 years 8 months 19 days    
Exercisable options, number 70,000    
Weighted average exercise price, exercisable options $ .10    
0.11 Range [Member]      
Outstanding option, number 250,000    
Average weighted remaining contractual life in years, option 4 years 6 months 4 days    
Exercisable options, number 250,000    
Weighted average exercise price, exercisable options $ 0.11    
0.12 Range [Member]      
Outstanding option, number 100,000    
Average weighted remaining contractual life in years, option 3 years 6 months 11 days    
Exercisable options, number 100,000    
Weighted average exercise price, exercisable options $ 0.12    
0.27 Range [Member]      
Outstanding option, number 40,000    
Average weighted remaining contractual life in years, option 5 years 6 months 4 days    
Exercisable options, number 40,000    
Weighted average exercise price, exercisable options $ 0.27    
0.55 Range [Member]      
Outstanding option, number 100,000    
Average weighted remaining contractual life in years, option 6 years 7 months 6 days    
Exercisable options, number 100,000    
Weighted average exercise price, exercisable options $ 0.55    
2.10 Range [Member]      
Outstanding option, number 40,000    
Average weighted remaining contractual life in years, option 6 months 4 days    
Exercisable options, number 40,000    
Weighted average exercise price, exercisable options $ 2.10