Parent entity information - Additional Information (Detail) - Parent [member] - AUD ($)	Jun. 30, 2018	Jun. 30, 2017
Disclosure of parent entity information [line items]
Share based payments reserve	$ 2,243,000	$ 2,078,000
Available for sale reserve	(37,000)	(37,000)
Contingent liabilities	0	0
Capital commitments for property, plant and equipment	$ 0	$ 0

A component of equity representing accumulated gains and losses on remeasuring available-for-sale financial assets. [Refer: Financial assets available-for-sale]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2018-01-01
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 78
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-02&anchor=para_78_e&doctype=Standard&book=B
-URIDate 2017-03-09

Name:	ifrs-full_ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant