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21 Loans and Financing (Details Narrative) - BRL (R$) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure of detailed information about borrowings [line items] |  |
Description of securites term | The term of these securities ranges from 4 to 51 months from the end of the reporting period. |
National Treasury Department (STN - Secretaria do Tesouro Nacional) [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Description of securites term | 2024.04.11 |
National Treasury Department (STN - Secretaria do Tesouro Nacional) [member] | Par Bonds [member] | Collateral [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Cash deposits | R$ 78,764 | R$ 57,968
National Treasury Department (STN - Secretaria do Tesouro Nacional) [member] | Discount Bonds [member] | Collateral [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Cash deposits | R$ 54,757 | R$ 40,465

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