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Financial instruments (Details 1)
Jun. 30, 2022
USD ($)
[1]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]  
Cash, cash equivalents and financial investments $ 2,363,683
Percentage % 100.00%
[1] The interbank deposit certificate (Certificado de Depósito Interbancário), or CDI rate is an average of interbank overnight rates in Brazil.