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Note 30 - Loan Note Instruments (Details Textual) - USD ($) $ in Thousands |  |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 30, 2024 | Jul. 03, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Feb. 02, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Nov. 01, 2022 | Jun. 23, 2017
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  | $ 12 |  |  |  |
Borrowings, interest rate |  |  |  |  |  |  |  |  |  | 7.25%
Repayments of borrowings |  |  |  |  |  | (0) | $ (0) | $ 361 |  |
Total borrowings |  |  |  |  |  | 7,112 | 7,104 |  |  |
Motapa [member] |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  | $ 7,250 |
Borrowings, interest rate |  |  |  |  |  |  |  |  | 13.00% |
Repayments of borrowings |  | $ 575 | $ 2,250 | $ 5,000 |  | 7,250 | (0) |  |  |
Total borrowings |  |  |  |  |  | 0 | 7,104 | $ 0 |  |
Borrowings, effective interest per annum |  |  |  |  |  |  |  |  | 12.75% |
Motapa [member] | At fair value [member] |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Total borrowings |  |  |  |  |  | 0 | 6,802 |  | $ 6,802 |
Solar loan notes, February 2, 2023 [member] |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  | $ 7,000 |  |  |  |  |
Borrowings, interest rate |  |  |  |  | 9.50% |  |  |  |  |
Total borrowings |  |  |  |  |  | $ 7,112 | $ 0 |  |  |
Borrowings, term (Year) |  |  |  |  | 3 years |  |  |  |  |
Caledonia loan notes, April 2024 [member] | Issuance of borrowings [member] |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Notional amount | $ 2,000 |  |  |  |  |  |  |  |  |
Borrowings, interest rate | 9.50% |  |  |  |  |  |  |  |  |
Borrowings, term (Year) | 3 years |  |  |  |  |  |  |  |  |

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- Definition The amount of outstanding funds that the entity is obligated to repay. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_7&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
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