Note 4 - Mineral Rights and Properties - Mineral Property Expenditures (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2025 |
Apr. 30, 2026 |
Apr. 30, 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 |
| X | ||||||||||
- Definition Amount of mineral property expenditures. No definition available.
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| X | ||||||||||
- Definition Amount of permitting and land payments. No definition available.
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| X | ||||||||||
- Definition Amount of capitalized development cost incurred during period and excluded from amortization for oil- and gas-producing activities accounted for under full cost method. Excludes acquisition and exploration costs and capitalized interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of capitalized exploration cost incurred during period and excluded from amortization for oil- and gas-producing activities accounted for under full cost method. Excludes acquisition and development costs and capitalized interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of capitalized production cost incurred during period for oil- and gas-producing activities. Includes cost incurred to operate and maintain well and related equipment and facility. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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