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Note 17 - Exploration and Evaluation Assets (Details Textual) $ in Thousands |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Nov. 03, 2021 USD ($) ha oz t | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Nov. 09, 2022 USD ($) | Nov. 07, 2022 oz t GT | Nov. 01, 2022 USD ($) oz
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |
Impairment loss recognised in profit or loss, exploration and evaluation assets |  |  | $ 0 | $ 467 | [1] |  |  |  |
Cash flows from (used in) exploration for and evaluation of mineral resources, classified as investing activities |  |  | (1,837) | (2,596) |  | $ (5,717) |  |  |
Maligreen [member] |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |
Impairment loss recognised in profit or loss, exploration and evaluation assets | [1] |  |  | $ (0) |  |  |  |  |
Historic gold mined, mass (Ounce) | oz |  | 20,000 |  |  |  |  |  |  |
Cash flows from (used in) exploration for and evaluation of mineral resources, classified as investing activities |  | $ (4,000) |  |  |  |  |  |  |
Exploration and evaluation work, period (Year) |  | 30 years |  |  |  |  |  |  |
Estimated meters of diamond core and percussion drilling |  | 60,000 |  |  |  |  |  |  |
Estimated bulk metallurgical test work (Metric Ton) | t |  | 3.5 |  |  |  |  |  |  |
Area of land (Hectare) | ha |  | 550 |  |  |  |  |  |  |
Indicated mineral resources (Metric Ton) | t |  |  |  |  |  |  |  | 8,030,000.00 |
Grade of indicated mineral resources (Gigaton) | GT |  |  |  |  |  |  |  | 1.71 |
Estimated gold in mineral resources (Ounce) | oz |  |  |  |  |  |  |  | 442,000 |
Inferred Mineral Resource (Metric Ton) | t |  |  |  |  |  |  |  | 6,170,000 |
Grade of inferred mineral resources (Gigaton) | GT |  |  |  |  |  |  |  | 2.12 |
Estimated gold in inferred mineral resource (Ounce) | oz |  |  |  |  |  |  |  | 420,000 |
Bilboes [member] |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |
Non cash acquisitions, exploration and evaluation assets |  |  | 73,198 |  |  |  |  |  |
Non cash acquisitions, exploration and evaluation assets, decommissioned |  |  | 1,618 |  |  |  |  |  |
Non cash acquisitions, exploration and evaluation assets, right of use assets |  |  | $ 40 |  |  |  |  |  |
Motapa [member] |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |
Historic gold mined, mass (Ounce) | oz |  |  |  |  |  |  |  |  | 300,000
Cash transferred |  |  |  |  |  |  | $ 41 |  | $ 1,000
Financial liabilities recognised as of acquisition date |  |  |  |  |  |  |  |  | $ 0
[1] | Caledonia completed sufficient work to establish that the potential orebody at the Connemara North property would not meet Caledonia’s requirements in terms of size, grade and width. Accordingly, Caledonia did not exercise the option to acquire the property. The costs have been impaired to $Nil.

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