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Interests in subsidiaries - Summary of interest in subsidiaries (Detail)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Kazia Laboratories Pty Ltd [member]
Disclosure of subsidiaries [line items]
Principal place of business	Australia
Country of incorporation	Australia
Ownership interest	100.00%	100.00%
Kazia Research Pty Ltd [member]
Disclosure of subsidiaries [line items]
Principal place of business	Australia
Country of incorporation	Australia
Ownership interest	100.00%	100.00%
Kazia Therapeutics Inc [member]
Disclosure of subsidiaries [line items]
Principal place of business	United States of America
Country of incorporation	United States of America
Ownership interest	100.00%	100.00%
Glioblast Pty Ltd [member]
Disclosure of subsidiaries [line items]
Principal place of business	Australia
Country of incorporation	Australia
Ownership interest	100.00%	100.00%
Kazia Therapeutics (Hong Kong) Limited [Member]
Disclosure of subsidiaries [line items]
Principal place of business	Hong Kong
Country of incorporation	Hong Kong
Ownership interest	100.00%

X

- Definition

The country in which a subsidiary of the entity is incorporated. [Refer: Subsidiaries [member]]

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