Business combinations - Additional Information (Detail)	12 Months Ended
Jun. 30, 2018 AUD ($) Milestone	Oct. 31, 2016 AUD ($)
Disclosure of detailed information about business combination [line items]
Milestone payment discount rate	35.00%
Glioblast Pty Ltd [member]
Disclosure of detailed information about business combination [line items]
Percentage acquired of the issued shares		100.00%
Acquisition-related costs	$ 345,000
Goodwill arising from business combination	0	$ 0
Revenue of acquiree from the date of acquisition	0
Profit of acquiree from the date of acquisition	0
Group's revenue had the acquisition occurred on 1 July 2016	$ 0
Number of contingent milestone payments \| Milestone	4
Genentech agreement [member]
Disclosure of detailed information about business combination [line items]
Number of contingent milestone payments \| Milestone	1

The amount of acquisition-related costs recognised as an expense for transactions that are recognised separately from the acquisition of assets and the assumption of liabilities in business combinations. [Refer: Business combinations [member]]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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No definition available.

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The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Business combinations [member]]

+ References

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- Definition

The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

+ References

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- Definition

The profit (loss) of the acquiree, since the acquisition date, included in the consolidated statement of comprehensive income. [Refer: Profit (loss)]

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The amount of revenue of the acquiree since the acquisition date included in the consolidated statement of comprehensive income. [Refer: Revenue]

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The revenue of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Business combinations [member]; Revenue]

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Milestone payment discount rate.

+ References

No definition available.

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- Definition

Number of contingent milestone payments.

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