Income Taxes - Schedule of Significant Components of Deferred Taxes (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Components of Deferred Tax Assets [Abstract] | ||
| Mineral interests | $ 13,562 | $ 10,438 |
| Net operating losses available for future periods | 20,424 | 16,125 |
| Startup and organizational costs | 1,697 | 1,842 |
| Research and development costs | 2,120 | 1,295 |
| Share issuance/financing costs | 7,420 | 1,357 |
| Canadian restricted interest and financing carryforward | 605 | 605 |
| Capital losses available for future periods | 457 | 456 |
| Other | 50 | 41 |
| Total deferred tax assets | 46,335 | 32,159 |
| Valuation allowance | (46,335) | (32,159) |
| Net deferred tax assets | $ 0 | $ 0 |
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- Definition Deferred tax assets mineral interest. No definition available.
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- Definition Deferred tax assets share issuance costs. No definition available.
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- Definition Deferred tax assets startup and organizational costs. No definition available.
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- References No definition available.
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible interest carryforward. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from in-process research and development cost acquired in business combination or from joint venture formation or both. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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