SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Bonus royalties (Details) - $ / T |
6 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jul. 31, 2026 |
Jan. 31, 2026 |
Jan. 31, 2025 |
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| Disaggregation of Revenue | |||
| Bonus royalty percentage | 0.50% | ||
| Bonus royalty, gross proceeds percentage | 3.00% | ||
| Royalty bonuses, price above adjusted threshold price per ton | 2 | ||
| Adjusted threshold price (in dollars per ton) | 71.7 | 69.41 | |
| Minimum | |||
| Disaggregation of Revenue | |||
| Bonus royalty, gross proceeds percentage | 1.00% | ||
| Maximum | |||
| Disaggregation of Revenue | |||
| Royalty bonuses, adjusted threshold price | 10 | ||
| X | ||||||||||
- Definition Percentage of gross proceeds for royalty bonus on all tonnage shipped for sale at prices between the adjusted threshold price. No definition available.
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- Definition Percentage of royalty bonus of the gross proceeds of product shipped on all tonnage shipped for sale at prices between the adjusted threshold price. No definition available.
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- Definition Represents the adjusted threshold price per ton as per the collaborative agreement. No definition available.
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| X | ||||||||||
- Definition Adjustments to the per-ton threshold price on gross revenues for royalties. No definition available.
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- Definition Price per tons for bonus royalty above adjusted threshold price. No definition available.
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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