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Related parties (Details 1) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Notes and other explanatory information [abstract]      
Short-term employee benefits R$ 16,979 R$ 13,564 R$ 11,933
Share-based compensation plans 21,380 13,116 20,251
Total R$ 38,359 R$ 26,680 R$ 32,184