Share-based payments - Stock options (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
May 31, 2026 |
May 31, 2025 |
May 31, 2026 |
May 31, 2025 |
|
| Share-based payments | ||||
| Share-based compensation expense | $ 2,765 | $ 8,440 | $ 15,896 | $ 31,660 |
| Minimum | ||||
| Share-based payments | ||||
| Exercise price | $ 2,644 | |||
| Expiration period | 5 years | |||
| Maximum | ||||
| Share-based payments | ||||
| Exercise price | $ 2,435,400 | |||
| Expiration period | 10 years | |||