Note 7 - Leases (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
May 31, 2026 |
May 31, 2025 |
|
| Lease, Cost | $ 4,980 | $ 3,453 |
| Sublease Income | 0 | 761 |
| Operating and Financing Lease, Liability | 171,512 | $ 71,866 |
| Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | ||
| Operating and Financing Lease, Liability | $ 985 | |
| Maximum [Member] | ||
| Lessee, Remaining Lease Term (Year) | 30 years | |