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Transactions with related parties - Summary of Balances Outstanding at the End of Reporting Period (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure of transactions between related parties [line items]    
Receivables from related parties R$ 4,720 R$ 7,200
Loans to management personnel    
Disclosure of transactions between related parties [line items]    
Receivables from related parties 4,663 4,149
Convertible loans    
Disclosure of transactions between related parties [line items]    
Receivables from related parties R$ 57 R$ 3,051