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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, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | --- | ---
Deferred tax assets: |  |  |  |
Accrued reclamation costs | $ 33,451 | $ 33,007 |  |
Deferred exploration | 22,341 | 22,584 |  |
Foreign net operating losses | 52,091 | 71,391 |  |
Domestic net operating losses | 214,137 | 211,381 |  |
Foreign exchange loss | 22,247 | 24,235 |  |
Foreign tax credit carryforward | 2,026 | 2,493 |  |
Miscellaneous | 35,060 | 39,628 |  |
Total deferred tax assets | 381,353 | 404,719 |  |
Valuation allowance | (100,910) | (72,856) | $ (39,152) | $ (77,210)
Total deferred tax assets | 280,443 | 331,863 |  |
Deferred tax liabilities: |  |  |  |
Miscellaneous | (12,950) | (9,020) |  |
Properties, plants and equipment | (369,445) | (427,584) |  |
Total deferred tax liabilities | (382,395) | (436,604) |  |
Net deferred tax liability | $ (101,952) | $ (104,741) |  |

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