Equity Incentive Plan (Tables)
3 Months Ended
May 31, 2020
Equity [Abstract]  
Equity incentive plan
    2020     2019  
    Number of units     Number of units  
Outstanding, beginning of period     1,300,518       3,223,516  
Automatic share reserve increase     -       1,500,000  
Units granted     (87,114 )     (25,145 )
Units forfeited     2,989       27,213  
Units expired     -       260,417  
Outstanding, end of period     1,216,393       4,986,001