Note 4 - Mineral Rights and Properties - Mineral Rights and Property Acquisition Costs (Details) - USD ($) $ in Thousands |
9 Months Ended | |
|---|---|---|
Apr. 30, 2026 |
Jul. 31, 2025 |
|
| Balance | $ 717,233 | |
| Additions | 715 | |
| Impact of foreign currency translation | 2,599 | |
| Balance | 720,547 | |
| Balance | (7,582) | |
| Additions | (975) | |
| Impact of foreign currency translation | (1) | |
| Balance | (8,558) | |
| Balance | 711,989 | $ 709,651 |
| UNITED STATES | ||
| Balance | 326,192 | |
| Additions | 715 | |
| Balance | 326,907 | |
| Balance | (7,477) | |
| Additions | (975) | |
| Impact of foreign currency translation | 0 | |
| Balance | (8,452) | |
| Balance | 318,455 | 318,715 |
| CANADA | ||
| Balance | 376,027 | |
| Additions | 0 | |
| Impact of foreign currency translation | 2,599 | |
| Balance | 378,626 | |
| Balance | (105) | |
| Additions | 0 | |
| Impact of foreign currency translation | (1) | |
| Balance | (106) | |
| Balance | 378,520 | 375,922 |
| PARAGUAY | ||
| Balance | 15,014 | |
| Additions | 0 | |
| Balance | 15,014 | |
| Balance | 0 | |
| Additions | 0 | |
| Impact of foreign currency translation | 0 | |
| Balance | 0 | |
| Balance | $ 15,014 | $ 15,014 |