Note 3 - Capital Assets - Schedule of Capital Assets (Details) - USD ($) $ in Thousands |
Aug. 31, 2026 |
May 31, 2026 |
|---|---|---|
| Capital assets, gross | $ 966,015 | $ 968,896 |
| Less: accumulated amortization | (300,092) | (288,671) |
| Total | 665,923 | 680,225 |
| Land [Member] | ||
| Capital assets, gross | 59,583 | 59,764 |
| Manufacturing Facility [Member] | ||
| Capital assets, gross | 462,936 | 464,415 |
| Equipment [Member] | ||
| Capital assets, gross | 286,601 | 283,778 |
| Leasehold Improvements [Member] | ||
| Capital assets, gross | 32,807 | 32,954 |
| Right of Use Assets [Member] | ||
| Capital assets, gross | 116,458 | 117,976 |
| Construction in Progress [Member] | ||
| Capital assets, gross | $ 7,630 | $ 10,009 |