Basis of preparation and presentation (Details Narrative)	12 Months Ended
	Jun. 30, 2018
LegalEntityLineItems [Line Items]
Description of Current income tax and social contribution	<p><font style="font: 10pt Times New Roman, Times, Serif">Current income tax and social contribution are calculated applying a rate of 15%, plus surtax of 10% on taxable profit exceeding R$240 per annum for income tax, and 9% on taxable profit for social contribution on net profit.</font></p>
Income and social contribution tax loss carryforwards,Limitations on Use	<p><font style="font: 10pt Times New Roman, Times, Serif">Income tax and social contribution loss carryforwards can be used to offset the payment of income tax and social contribution tax payable limited to 30% of annual taxable profit, except for the rural activity which may reach 100% of annual taxable profit. Tax loss carryforwards do not expire.</font></p>
Suh rates for income tax	25.00%
Suh rates for social contribution tax	9.00%
Brazilian tax legislation [Member]
LegalEntityLineItems [Line Items]
Description of rate use calcalute taxable profit	<p><font style="font: 10pt Times New Roman, Times, Serif">Under this regime, taxable profit for income and social contribution tax is calculated by applying a rate of 8% and 12% on gross revenue, respectively, on which the statutory rates for income and social contribution tax are applied.  </font></p>