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23 Post-employment Benefits (Details Narrative) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Variable Income [member] |  |
Disclosure of defined benefit plans [line items] |  |
Legal limit | 70.00% |
Healthcare Plan [member] |  |
Disclosure of defined benefit plans [line items] |  |
Average age of inactive participants | 68 years 1 month 6 days |
Pension Plans [member] |  |
Disclosure of defined benefit plans [line items] |  |
Average age of inactive participants | 67 years 2 months 12 days |
Plan III [member] |  |
Disclosure of defined benefit plans [line items] |  |
Surplus | R$ 91,218 |
Contributions of all active employees | 67,515 | R$ 70,564
Unified Plan [member] |  |
Disclosure of defined benefit plans [line items] |  |
Surplus | R$ 908,294 |

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