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Risk management (Details Narrative) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
IfrsStatementLineItems [Line Items] |  |
Total exposure | R$ 3,366,723 | R$ 2,785,853
Liabilities related to exchange rate variation of borrowings and financing contracts | 574,953 | 309,854
Income before taxes | 336,672 | 278,586
Effects on profit for the year before taxes | R$ 234,384 | 178,044
Operations contracted description | As of April 04, 2024, the Company contracted hedge operations, with no speculative nature, through swap transactions of debt variations denominated in US$ + 6.23% and Yen + 1.44% interest per year for a percentage of CDI + 0.13% p.a. The total value of the hedged debt with the aforementioned operations was 98.0%. |
Hedge operations description | The Company entered into hedge operations, effective from December 12, 2024, with no speculative nature, through swap transactions denominated in US$ and Yen + annual interest, as shown in Note 18, for a percentage of CDI - 0.36% p.a. The total value of the debt hedged with the aforementioned operations was 100.0%. |
Financial instrument assets receivables from related parties | R$ 1,228,389 | 1,196,545
Reimbursement of additional retirement and pension plan | 1,105,299 | 1,076,174
Banco BV [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Current accounts and investment funds | 298 | 322,241
Banco Santander [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Current accounts and investment funds | R$ 1,195,511 | R$ 1,680

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