Note 4 - Properties, Plant and Equipment, Net and Mineral Rights - Assets Held for Sale (Details) - Discontinued Operations, Held-for-Sale [Member] - USD ($) |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Water rights | $ 730,595 | $ 730,595 |
| Land | 6,328,338 | 6,328,338 |
| Total assets held for sale | $ 7,058,933 | $ 7,058,933 |