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Brumadinho dam failure (Details Narrative) $ in Thousands, R$ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
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Sep. 30, 2023 USD ($) | Sep. 30, 2023 BRL (R$) | Aug. 31, 2022 USD ($) | Aug. 31, 2022 BRL (R$) | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2021 BRL (R$)
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |
Present value at nominal rate |  |  |  |  | 6.50% |  | 6.50% |  | 5.31% |  |
Other operating expenses, net |  |  |  |  | $ 89,000 | $ 131,000 | $ 199,000 | $ 242,000 |  |  |
Fine amount paid | $ 15,000 | R$ 86 | $ 15,000 | R$ 86 |  |  |  |  |  |  |
Compensation paid on damages |  |  |  |  |  |  |  |  |  | $ 180 | R$ 1
Litigation settlement paid |  |  |  |  |  |  |  |  | $ 56,000 |  |
Description of alleged losses |  |  |  |  |  |  | the Claimants initially estimated the amount of the alleged losses would be approximately US$324 (R$1,800 million). In another proceeding filed by foreign funds, the Claimants initially estimated the amount of the alleged losses would be approximately US$702 (R$3,900 million). In the procedure presented by minority shareholders, the applicants estimated the alleged losses at approximately US$540 (R$3,000 million), which could be increased later, as alleged by the applicants. |  |  |  |
Potential loss |  |  |  |  |  |  | $ 109,000 |  | $ 94,000 |  |
Insurance received |  |  |  |  |  |  | $ 8,000 | $ 11,000 |  |  |
Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |
Obligations for an average period |  |  |  |  |  |  | 5 years |  |  |  |
Top of range [member] |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |
Obligations for an average period |  |  |  |  |  |  | 7 years |  |  |  |

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