Note 8 - Leases (Details Textual) - USD ($) |
6 Months Ended | |
|---|---|---|
Nov. 30, 2025 |
Nov. 30, 2024 |
|
| Finance Lease, Right-of-Use Asset, Amortization | $ 2,443 | $ 8,090 |
| Equipment One [Member] | ||
| Finance Lease, Right-of-Use Asset, Amortization | $ 2,443 | $ 8,090 |
| Two Buildings [Member] | ||
| Lessee, Operating Lease, Term of Contract | 120 months | |
| Lessee, Operating Lease, Renewal Term | 60 months | |
| Lessee, Operating Lease, Discount Rate | 6.00% | |
| Monthly Rent Expense, Monthly Increase Every Fifth Year, Percent | 5.00% | |
| Corporate Offices [Member] | ||
| Lessee, Operating Lease, Term of Contract | 72 months | |
| Lessee, Operating Lease, Discount Rate | 8.50% | |