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Note 7 - Income and Mining Taxes - Schedule of Components of Net Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Deferred tax assets: |  |  |  |
Accrued reclamation costs | $ 34,538 | $ 33,451 |  |
Deferred exploration | 21,591 | 22,341 |  |
Foreign net operating losses | 50,763 | 52,091 |  |
Domestic net operating losses | 191,583 | 214,137 |  |
Foreign exchange loss | 29,292 | 22,247 |  |
Foreign tax credit carryforward | 1,576 | 2,026 |  |
Miscellaneous | 38,443 | 35,060 |  |
Total deferred tax assets | 367,786 | 381,353 |  |
Valuation allowance | (115,105) | (100,910) | $ (72,856) | $ (39,152)
Total deferred tax assets | 252,681 | 280,443 |  |
Deferred tax liabilities: |  |  |  |
Miscellaneous | (8,648) | (12,950) |  |
Properties, plants and equipment | (354,299) | (369,445) |  |
Total deferred tax liabilities | (362,947) | (382,395) |  |
Net deferred tax liability | $ (110,266) | $ (101,952) |  |

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