Commitments (Details 2) - BRL (R$) R$ in Thousands	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Sugarcane Agricultural Partnership Agreement [Member] \| ETH Bioenergia [Member]
LegalEntityLineItems [Line Items]
Operating lease	R$ 3,407	R$ 1,017	R$ 127

The amount of operating lease income. Operating lease is a lease that does not transfer substantially all the risks and rewards incidental to ownership of an underlying asset.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2019-01-01
-Name IFRS
-Number 16
-IssueDate 2018-01-01
-Paragraph 90
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=16&date=2018-03-01&anchor=para_90_b&doctype=Standard
-URIDate 2018-03-16

Name:	ifrs-full_OperatingLeaseIncome
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration