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Note 3 - Inventories (Tables) | 12 Months Ended
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Jul. 31, 2021
Notes Tables |
Schedule of Inventory, Current [Table Text Block] |
|  | July 31, 2021 |  |  | July 31, 2020 |
Supplies and work-in-progress |  | $ | 33,781 |  |  | $ | 33,781 |
Uranium concentrates from production |  |  | 177,881 |  |  |  | 177,881 |
Purchased uranium inventories |  |  | 28,960,818 |  |  |  | - |
|  | $ | 29,172,480 |  |  | $ | 211,662 |
Contractual Obligation, Fiscal Year Maturity [Table Text Block] |
|  | Purchase Commitments in Pounds |  |  | Total Purchase Price |
Fiscal 2022 |  |  | 600,000 |  |  | $ | 18,065,000 |
Fiscal 2023 |  |  | 1,205,000 |  |  |  | 39,409,000 |
Fiscal 2024 |  |  | 495,000 |  |  |  | 16,913,250 |
Fiscal 2025 |  |  | 400,000 |  |  |  | 14,130,000 |
Fiscal 2026 |  |  | - |  |  |  | - |
Total |  |  | 2,700,000 |  |  | $ | 88,517,250 |

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