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Share Capital - Disclosure of continuity of stock options (Details)
 12 Months Ended
Apr. 30, 2024
Shares
$ / shares
Apr. 30, 2023
Shares
$ / shares
Disclosure of classes of share capital [abstract]    
Options outstanding, beginning of the year | Shares 15,926,972 14,640,472
Weighted average exercise price, beginning of the year | $ / shares $ 1.69 $ 1.64
Issued | Shares 4,500,000 2,720,000
Weighted average exercise price of share options issued | $ / shares $ 1.57 $ 1.63
Cancelled | Shares (841,000) (658,153)
Weighted average exercise price of share options cancelled | $ / shares $ (1.85) $ (2.06)
Exercised | Shares (782,250) (775,347)
Weighted average exercise price of share options exercised | $ / shares $ (1.38) $ (0.41)
Options outstanding, end of the year | Shares 18,803,722 15,926,972
Weighted average exercise price, end of the year | $ / shares $ 1.66 $ 1.69
Number of options exercisable, end of the year | Shares 15,469,222 13,692,722
Weighted average exercise price of share options exercisable , end of the year | $ / shares $ 1.68 $ 1.69