| Schedule Of Mineral Rights and Property Acquisition Costs [Table Text Block] |
Costs | | United States | | | Canada | | | Paraguay | | | Total | |
Balance, July 31, 2025 | | $ | 326,192 | | | $ | 376,027 | | | $ | 15,014 | | | $ | 717,233 | |
Additions | | | 715 | | | | - | | | | - | | | | 715 | |
Impact of foreign currency translation | | | - | | | | 2,599 | | | | - | | | | 2,599 | |
Balance, April 30, 2026 | | | $326,907 | | | | $378,626 | | | | $15,014 | | | | $720,547 | |
Accumulated Depletion and Amortization | | United States | | | Canada | | | Paraguay | | | Total | |
Balance, July 31, 2025 | | | (7,477 | ) | | | (105 | ) | | | - | | | | (7,582 | ) |
Additions | | | (975 | ) | | | - | | | | - | | | | (975 | ) |
Impact of foreign currency translation | | | - | | | | (1 | ) | | | - | | | | (1 | ) |
Balance, April 30, 2026 | | | (8,452 | ) | | | (106 | ) | | | - | | | | (8,558 | ) |
| | | | | | | | | | | | | | | | |
Carrying Value | | | | | | | | | | | | | | | | |
Balance, July 31, 2025 | | $ | 318,715 | | | $ | 375,922 | | | $ | 15,014 | | | $ | 709,651 | |
Balance, April 30, 2026 | | $ | 318,455 | | | $ | 378,520 | | | $ | 15,014 | | | $ | 711,989 | |
|
| Schedule Of Mineral Property Expenditures Incurred by Major Projects [Table Text Block] |
| | Three Months Ended April 30, | | | Nine Months Ended April 30, | |
| | | 2026 | | | | 2025 | | | | 2026 | | | | 2025 | |
Permitting and land payments | | $ | 2,604 | | | $ | 1,454 | | | $ | 6,669 | | | $ | 4,438 | |
Extraction readiness and mine site maintenance | | | 3,521 | | | | 4,654 | | | | 8,283 | | | | 11,321 | |
Exploration | | | 7,625 | | | | 3,079 | | | | 15,665 | | | | 8,919 | |
Development | | | 15,792 | | | | 6,493 | | | | 43,525 | | | | 18,759 | |
Total | | $ | 29,542 | | | $ | 15,680 | | | $ | 74,142 | | | $ | 43,437 | |
|