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3. COMMON STOCK - Summarizes significant ranges of outstanding warrants (Details) - $ / shares
9 Months Ended
Nov. 30, 2019
Feb. 28, 2019
Equity [Abstract]    
Exercise price $ 0.21  
Number of warrants outstanding 6,407,221  
Weighted average remaining life in years 9 months 14 days  
Weighted Average Execise price $ 0.21 $ 0.21
Warrants Exercisable    
Number outstanding 6,407,221  
Weighted average exercise price $ 0.21