Note 5 - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($) |
Aug. 31, 2026 |
May 31, 2026 |
|---|---|---|
| Property, Plant and Equipment, Gross | $ 80,612,626 | $ 80,482,223 |
| Less: Accumulated depreciation and amortization | (56,026,934) | (54,639,464) |
| Net Property, Plant and Equipment | 24,585,692 | 25,842,759 |
| Machinery and Equipment [Member] | ||
| Property, Plant and Equipment, Gross | 72,985,906 | 72,855,503 |
| Net Property, Plant and Equipment | 71,155 | |
| Plant Buildings and Land [Member] | ||
| Property, Plant and Equipment, Gross | 3,930,207 | 3,930,207 |
| Leasehold Improvements [Member] | ||
| Property, Plant and Equipment, Gross | 2,447,630 | 2,447,630 |
| Furniture and Fixtures [Member] | ||
| Property, Plant and Equipment, Gross | 542,057 | 542,057 |
| Construction in Progress [Member] | ||
| Property, Plant and Equipment, Gross | $ 706,826 | $ 706,826 |
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- Definition Amount of accumulated depreciation, depletion, and amortization of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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