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Note 17 - Segmented Information - Long-term Assets by Geographic Segments (Details) - USD ($) | Jul. 31, 2021 | Jul. 31, 2020 | Jul. 30, 2020 | Jul. 31, 2019
--- | --- | --- | --- | ---
Mineral Rights and Properties | $ 63,784,003 | $ 63,655,503 | $ 63,655,503 |
Property, Plant and Equipment | 7,358,037 | 7,019,817 | 7,019,817 |
Restricted Cash | 2,037,677 | 1,839,216 | 1,839,216 | $ 1,821,392
Equity-Accounted Investment | 20,729,674 | 11,515,327 | 11,515,327 |
Other Non-Current Assets | 586,332 | $ 769,875 | 769,875 |
Total Long-Term Assets | 94,495,723 |  | 84,799,738 |
United States Texas [Member] |  |  |  |
Mineral Rights and Properties | 12,421,161 |  | 12,422,661 |
Property, Plant and Equipment | 6,645,905 |  | 6,299,786 |
Restricted Cash | 1,948,704 |  | 1,750,243 |
Equity-Accounted Investment |  |  |  |
Other Non-Current Assets | 522,306 |  | 703,312 |
Total Long-Term Assets | 21,538,076 |  | 21,176,002 |
United States Arizona [Member] |  |  |  |
Mineral Rights and Properties | 4,627,477 |  | 4,527,477 |
Property, Plant and Equipment |  |  |  |
Restricted Cash | 15,000 |  | 15,000 |
Equity-Accounted Investment |  |  |  |
Other Non-Current Assets |  |  |  |
Total Long-Term Assets | 4,642,477 |  | 4,542,477 |
United States Wyoming [Member] |  |  |  |
Mineral Rights and Properties | 31,527,870 |  | 31,527,870 |
Property, Plant and Equipment | 312,763 |  | 327,639 |
Restricted Cash | 73,973 |  | 73,973 |
Equity-Accounted Investment |  |  |  |
Other Non-Current Assets | 16,000 |  | 22,000 |
Total Long-Term Assets | 31,930,606 |  | 31,951,482 |
United States Other States [Member] |  |  |  |
Mineral Rights and Properties | 146,971 |  | 116,971 |
Property, Plant and Equipment |  |  |  |
Restricted Cash |  |  |  |
Equity-Accounted Investment |  |  |  |
Other Non-Current Assets |  |  |  |
Total Long-Term Assets | 146,971 |  | 116,971 |
CANADA |  |  |  |
Mineral Rights and Properties | 546,938 |  | 546,938 |
Property, Plant and Equipment | 34,036 |  | 29,677 |
Restricted Cash |  |  |  |
Equity-Accounted Investment | 20,729,674 |  | 11,515,327 |
Other Non-Current Assets | 48,026 |  | 44,563 |
Total Long-Term Assets | 21,358,674 |  | 12,136,505 |
PARAGUAY |  |  |  |
Mineral Rights and Properties | 14,513,586 |  | 14,513,586 |
Property, Plant and Equipment | 365,333 |  | 362,715 |
Restricted Cash |  |  |  |
Equity-Accounted Investment |  |  |  |
Other Non-Current Assets |  |  |  |
Total Long-Term Assets | $ 14,878,919 |  | $ 14,876,301 |

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