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Note 5 - Tribute Arrangement and Mining Agreement and Bilboes Gold Limited Acquisition - Consideration Paid (Details) - USD ($) $ in Thousands | Jan. 06, 2023 | Dec. 31, 2023 | Apr. 11, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | --- | ---
Statement Line Items [Line Items] |  |  |  |  |
Bilboes oxide mine assets (pre-acquisition) |  | $ (179,649) |  | $ (178,983) |
Exploration and evaluation assets |  | 94,272 |  | 17,579 | $ 8,648
Inventories |  | 20,304 |  | 18,334 |
Cash and cash equivalents |  | 6,708 |  | 6,735 |
Lease liabilities |  | $ (208) |  | $ (313) | $ (465)
Bilboes Holdings (Private) Limited [member] | Caledonia Holdings Zimbabwe (Private) Limited [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Prepayments | $ 877 |  |  |  |
Oxide plant [member] | Bilboes Holdings (Private) Limited [member] | Caledonia Holdings Zimbabwe (Private) Limited [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Bilboes oxide mine assets (pre-acquisition) | (872) |  |  |  |
Assets of Bilboes Gold Limited [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Equity issued | 65,677 |  | $ 65,677 |  |
Initial consideration shares issued (4,425,797 at $12.82 per share) | 56,739 |  |  |  |
Escrow shares issued (441,095 at $12.82 per share) | 5,655 |  |  |  |
Deferred consideration shares issued (256,152 at $12.82 per share) | 3,283 |  |  |  |
Prepayments | 5 |  |  |  |
Total net consideration | 65,682 |  |  |  |
Exploration and evaluation assets | 73,198 |  |  |  |
Inventories | 70 |  |  |  |
Trade and other receivables | 802 |  |  |  |
Cash and cash equivalents | 54 |  |  |  |
Provisions | (4,466) |  |  |  |
Trade and other payables - external | (3,943) |  |  |  |
Lease liabilities | (28) |  |  |  |
Income tax payable | (10) |  |  |  |
Total net consideration | $ 65,682 |  |  |  |

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