v3.25.2
Share Capital - Summary of Options Outstanding (Details)
 12 Months Ended
Apr. 30, 2025
shares
$ / shares
Apr. 30, 2025
shares
$ / shares
Apr. 30, 2024
shares
Apr. 30, 2023
shares
Disclosure Of Classes Of Share Capital [Line Items]        
Exercise price | $ / shares $ 5.69      
Remaining life (year) 4 years 5 months 12 days      
Options outstanding 1,927,925 1,927,925 1,521,367 1,884,428
Unvested 661,194 661,194    
Vested 1,266,731 1,266,731    
Option Expiry Date September 1, 2025        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date September 1, 2025      
Exercise price | $ / shares $ 8.5      
Remaining life (year) 4 months 2 days      
Options outstanding 220,000 220,000    
Unvested 0 0    
Vested 220,000 220,000    
Option Expiry Date January 6, 2026        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date January 6, 2026      
Exercise price | $ / shares $ 20.3      
Remaining life (year) 8 months 8 days      
Options outstanding 138,000 138,000    
Unvested 0 0    
Vested 138,000 138,000    
Option Expiry Date January 2, 2026        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date January 2, 2026      
Exercise price | (per share) $ 6.89 $ 7.72    
Remaining life (year) 8 months 4 days      
Options outstanding 5,650 5,650    
Unvested 0 0    
Vested 5,650 5,650    
Option Expiry Date January 7, 2027        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date January 7, 2027      
Exercise price | $ / shares $ 7.94      
Remaining life (year) 1 year 8 months 8 days      
Options outstanding 235,000 235,000    
Unvested 0 0    
Vested 235,000 235,000    
Option Expiry Date January 13, 2027        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date January 13, 2027      
Exercise price | $ / shares $ 8.3      
Remaining life (year) 1 year 8 months 15 days      
Options outstanding 16,000 16,000    
Unvested 0 0    
Vested 16,000 16,000    
Option Expiry Date May 15, 2027        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date May 15, 2027      
Exercise price | $ / shares $ 5.79      
Remaining life (year) 2 years 14 days      
Options outstanding 64,000 64,000    
Unvested 0 0    
Vested 64,000 64,000    
Option Expiry Date February 19, 2027        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [1] February 19, 2027      
Exercise price | $ / shares [1] $ 5.81      
Remaining life (year) [1] 1 year 9 months 21 days      
Options outstanding [1] 7,265 7,265    
Unvested [1] 0 0    
Vested [1] 7,265 7,265    
Option Expiry Date February 19, 2028        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [1] February 19, 2028      
Exercise price | $ / shares [1] $ 5.81      
Remaining life (year) [1] 2 years 9 months 21 days      
Options outstanding [1] 475,452 475,452    
Unvested [1] 0 0    
Vested [1] 475,452 475,452    
Option Expiry Date January 19, 2034        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [2] January 19, 2034      
Exercise price | (per share) $ 2.1 [2] $ 1.48    
Remaining life (year) [2] 3 years 8 months 23 days      
Options outstanding [2] 95,558 95,558    
Unvested [2] 21,111 21,111    
Vested [2] 74,447 74,447    
Option Expiry Date January 4, 2033        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [3] January 4, 2033      
Exercise price | $ / shares [3] $ 2.08      
Remaining life (year) [3] 7 years 8 months 8 days      
Options outstanding [3] 8,000 8,000    
Unvested [3] 3,667 3,667    
Vested [3] 4,333 4,333    
Option Expiry Date January 23, 2033        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [3] January 23, 2033      
Exercise price | $ / shares [3] $ 2.08      
Remaining life (year) [3] 7 years 8 months 26 days      
Options outstanding [3] 8,000 8,000    
Unvested [3] 3,667 3,667    
Vested [3] 4,333 4,333    
Option Expiry Date March 1, 2033        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [3] March 1, 2033      
Exercise price | $ / shares [3] $ 2.08      
Remaining life (year) [3] 7 years 10 months 2 days      
Options outstanding [3] 8,000 8,000    
Unvested [3] 4,000 4,000    
Vested [3] 4,000 4,000    
Option Expiry Date April 2, 2033        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [3] April 2, 2033      
Exercise price | $ / shares [3] $ 2.08      
Remaining life (year) [3] 7 years 11 months 4 days      
Options outstanding [3] 4,000 4,000    
Unvested [3] 2,083 2,083    
Vested [3] 1,917 1,917    
Option Expiry Date May 8, 2033        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [3] May 8, 2033      
Exercise price | $ / shares [3] $ 2.08      
Remaining life (year) [3] 8 years 10 days      
Options outstanding [3] 4,000 4,000    
Unvested [3] 2,167 2,167    
Vested [3] 1,833 1,833    
Option Expiry Date June 11, 2033        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [3] June 11, 2033      
Exercise price | $ / shares [3] $ 2.08      
Remaining life (year) [3] 8 years 1 month 13 days      
Options outstanding [3] 8,000 8,000    
Unvested [3] 4,500 4,500    
Vested [3] 3,500 3,500    
Option Expiry Date August 8, 2033        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [3] August 8, 2033      
Exercise price | $ / shares [3] $ 2.08      
Remaining life (year) [3] 8 years 3 months 10 days      
Options outstanding [3] 4,000 4,000    
Unvested [3] 2,417 2,417    
Vested [3] 1,583 1,583    
Option Expiry Date November 13, 2033        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [3] November 13, 2033      
Exercise price | $ / shares [3] $ 2.08      
Remaining life (year) [3] 8 years 6 months 18 days      
Options outstanding [3] 8,000 8,000    
Unvested [3] 5,333 5,333    
Vested [3] 2,667 2,667    
Option Expiry Date January 1, 2034        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [3] January 1, 2034      
Exercise price | $ / shares [3] $ 2.08      
Remaining life (year) [3] 8 years 8 months 4 days      
Options outstanding [3] 12,000 12,000    
Unvested [3] 8,500 8,500    
Vested [3] 3,500 3,500    
Option Expiry Date February 1, 2034        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [3] February 1, 2034      
Exercise price | $ / shares [3] $ 2.08      
Remaining life (year) [3] 8 years 9 months 3 days      
Options outstanding [3] 4,000 4,000    
Unvested [3] 2,917 2,917    
Vested [3] 1,083 1,083    
Option Expiry Date February 19, 2034        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [3] February 19, 2034      
Exercise price | $ / shares [3] $ 2.08      
Remaining life (year) [3] 8 years 9 months 21 days      
Options outstanding [3] 8,000 8,000    
Unvested [3] 5,833 5,833    
Vested [3] 2,167 2,167    
Option Expiry Date August 2, 2034        
Disclosure Of Classes Of Share Capital [Line Items]        
Expiry Date [3] August 2, 2034(      
Exercise price | $ / shares [3] $ 1.22      
Remaining life (year) [3] 9 years 3 months 3 days      
Options outstanding [3] 595,000 595,000    
Unvested [3] 595,000 595,000    
Vested [3] 0 0    
[1] Exercise price of U.S.$4.10. The figure in the table above is translated at the April 30, 2025 rate.
[2] Exercise price of U.S.$1.48. The figure in the table above is translated at the April 30, 2025 rate.
[3] Exercise price of U.S.$1.47. The figure in the table above is translated at the April 30, 2025 rate.