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Warrants (Details) - $ / shares
 12 Months Ended
Feb. 28, 2025
Feb. 29, 2024
Warrants    
Number of warrants, beginning balance 7,089,400 7,089,400
Issued 0 0
Exercised 0 0
Expired (7,089,400) 0
Number of warrants, ending balance 0 7,089,400
Weighted average exercise price, beginning balance $ 16.65 $ 16.65
Issued 0 0
Exercised 0 0
Expired 16.65 0
Weighted average exercise price, ending balance $ 0 $ 16.65