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v3.10.0.1

Commitments - Additional Information (Detail) | 12 Months Ended
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Jun. 30, 2018
Disclosure of finance lease and operating lease by lessee [abstract] |
Leases of premises and plant and equipment under non-cancellable operating leases expiration period | 3 years

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- References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Operating lease commitments expiry term. + References No definition available. + Details
Name: | kzia_OperatingLeaseCommitmentsExpiryTerm
Namespace Prefix: | kzia_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration