v3.26.1
Share-Based Payments (Details 1)
12 Months Ended
Apr. 30, 2026
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Outstanding at May 1, 2023, number of options | shares 637,539
Exercised, number of options | shares 0
Cancelled, number of options | shares (32,209)
Outstanding at April 30, 2024, number of options | shares 605,330
Exercisable at April 30, 2024, number of options | shares 585,033
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]  
Outstanding at May 1, 2023, weighted average exercise price (in dollars per share) | $ / shares $ 125.72
Exercised, weighted average exercise price (in dollars per share) | $ / shares 0
Cancelled, weighted average exercise price (in dollars per share) | $ / shares 128.79
Outstanding at April 30, 2024, weighted average exercise price (in dollars per share) | $ / shares 125.56
Exercisable at April 30, 2024, weighted average exercise price (in dollars per share) | $ / shares $ 124.60