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Contributed equity - Additional Information (Detail)
 6 Months Ended
Dec. 31, 2023
AUD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Nov. 30, 2023
$ / shares
shares
Jun. 30, 2023
AUD ($)
Disclosure of classes of share capital [line items]          
Weighted average exercise price of other equity instruments exercisable in share-based payment arrangement       $ 0.583  
Fair value of warrants | $     $ 1,981,756    
Issued capital | $ $ 98,779,714       $ 97,452,246
Fully paid ordinary shares par value $ 0        
Institutional investor [member]          
Disclosure of classes of share capital [line items]          
Number of shares issued | shares 26,200,000   26,200,000    
Issued capital | $ $ 0        
American Depositary Shares [Member]          
Disclosure of classes of share capital [line items]          
Number of shares issued | shares       2,620,000  
American Depositary Shares [Member] | Institutional investor [member]          
Disclosure of classes of share capital [line items]          
Number of shares issued | shares 2,620,000   2,620,000    
Issue price   $ 0.45      
Pre-funded warrants [member]          
Disclosure of classes of share capital [line items]          
Number of warrants issued | shares 1,824,445 1,824,445      
Warrants issue price per share   $ 0.44      
Weighted average exercise price of other equity instruments exercisable in share-based payment arrangement     $ 0.01    
Ordinary warrants [member]          
Disclosure of classes of share capital [line items]          
Number of warrants issued | shares 4,444,445 4,444,445      
Weighted average exercise price of other equity instruments exercisable in share-based payment arrangement     $ 0.583    
Warrant reserve [member]          
Disclosure of classes of share capital [line items]          
Proceeds from issuing other equity instruments $ 3,020,315 $ 1,981,756