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Cash and cash equivalents and financial investments (Details)
R$ in Thousands, $ in Thousands
Dec. 31, 2021
BRL (R$)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
BRL (R$)
Dec. 31, 2019
BRL (R$)
Dec. 31, 2018
BRL (R$)
Cash and cash equivalents and financial investments          
Cash and cash equivalents R$ 69,720   R$ 59,640    
Short-term financial investments 66,007   103,187    
Total 135,727   162,827 R$ 79,500 R$ 77,079
Financial investments R$ 798,786 $ 143,139 R$ 0