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Share Capital - Summary of Changes in Stock Option (Details)
 9 Months Ended 12 Months Ended
Jan. 31, 2024
shares
$ / shares
Apr. 30, 2023
shares
$ / shares
Apr. 30, 2022
shares
$ / shares
Disclosure of classes of share capital [abstract]      
Number of options, Outstanding, Beginning balance | shares 1,884,428 1,624,150  
Number of options, Granted | shares 240,000 718,512  
Number of options, Exercised | shares   (318,725)  
Number of option, Expired | shares (396,332) (115,174)  
Number of options, Forfeited | shares (105,566) (24,335)  
Number of options, Outstanding | shares 1,622,530 1,884,428 1,624,150
Number of options, Unvested | shares (537,444)    
Number of options, Exercisable | shares 1,085,086    
Weighted average exercise price outstanding, Beginning balance | $ / shares $ 8.29 $ 7.93  
Weighted average exercise price, Granted | $ / shares 1.98 7.98  
Weighted average exercise price, Exercised | $ / shares   3.26  
Weighted average exercise price, Expired | $ / shares 6.95 10.75  
Weighted average exercise price, Forfeited | $ / shares 4.15 20.3  
Weighted average exercise price outstanding, Ending balance | $ / shares 7.52 $ 8.29 $ 7.93
Weighted average exercise price, Unvested | $ / shares 4.1    
Weighted average exercise price, Exercisable | $ / shares $ 9.21    
Weighted average life remaining (years) 3 years 2 months 19 days 2 years 10 months 17 days 3 years 1 month 9 days
Weighted average life remaining (years), Unvested 4 years 4 months 28 days    
Weighted average life remaining (years), Exercisable 2 years 7 months 17 days