Note 4 - Leases (Details Textual) - USD ($) $ in Thousands |
Aug. 31, 2026 |
May 31, 2026 |
|---|---|---|
| Operating and Financing Lease, Liability | $ 170,512 | $ 171,512 |
| Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | ||
| Operating and Financing Lease, Liability | $ 985 |