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Stock Options (Details 1) - $ / shares
9 Months Ended
Nov. 30, 2021
May 31, 2021
Feb. 28, 2021
Stock Options      
Range of exercise prices $ 17.00    
Stock options Outstanding      
Number of options 336,309 301,015 283,368
Weighted average remaining contractual life (years) 3 years 9 months 18 days    
Weighted average exercise price $ 17.00    
Exercisable      
Number of options 336,309    
Weighted average exercise prices $ 17.00