Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The significant components of deferred taxes a (Details) - USD ($) $ in Thousands |
Jun. 30, 2025 |
Jun. 30, 2024 |
|---|---|---|
| Income Tax Disclosure [Abstract] | ||
| Net operating losses available for future periods | $ 16,125 | $ 14,177 |
| Mineral interests | 10,438 | 9,438 |
| Startup and organizational costs | 1,842 | 1,987 |
| Research and development costs | 1,295 | 1,419 |
| Share issuance/financing costs | 1,357 | 635 |
| Canadian restricted interest and financing carryforward | 605 | |
| Capital losses available for future periods | 456 | 456 |
| Other | 41 | 69 |
| Total deferred tax assets | 32,159 | 28,181 |
| Valuation allowance | (32,159) | (28,181) |
| Net deferred tax assets |