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Investment Properties (Details) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Notes and other explanatory information [abstract]      
Investment properties, beginning R$ 46,678 R$ 46,726 R$ 46,126
Depreciation (48) (48) (48)
Additions     648
Investment properties, ending R$ 46,630 R$ 46,678 R$ 46,726