Financial instruments - Summary of variable interest rate balances (Detail) - AUD ($) $ in Thousands	12 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Disclosure of financial instruments by type of interest rate [line items]
Cash at bank and in hand	$ 5,241	$ 7,361
Interest rate risk [member] \| Variable interest rate [member]
Disclosure of financial instruments by type of interest rate [line items]
Cash at bank and in hand	5,241	7,361
Net exposure to cash flow interest rate risk	$ 5,241	$ 7,361
Interest rate risk [member] \| Variable interest rate [member] \| Weighted average [member] \| Cash at bank and in hand [member]
Disclosure of financial instruments by type of interest rate [line items]
Interest rate	0.40%

- Definition

The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities]

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