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Accounts receivable and others (Details 2) - BRL (R$)
R$ in Thousands
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Accounts Receivable And Others Details 2Abstract    
Beginning balance R$ 861 [1] R$ 1,163
Accrual of provision 284 49
Write-off or reversal (279) (351)
Ending balance [1] R$ 866 R$ 861
[1] Changes in the allowance for doubtful accounts: