5. Maintenance and Other Inventory: Schedule of Maintenance and Other Inventory (Details) - USD ($) |
May 31, 2025 |
May 31, 2024 |
|---|---|---|
| Details | ||
| Maintenance and other inventory, Gross | $ 1,872,931 | $ 2,416,748 |
| Maintenance and other inventory, allowance for obsolescence | 765,056 | 836,919 |
| Maintenance and other inventory, Net | $ 1,107,875 | $ 1,579,829 |