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Share-Based Payments - Summary of Performance Rights Granted (Detail) - Share consolidation adjustment [member]
 12 Months Ended
Jun. 30, 2023
shares
$ / shares
Jun. 30, 2022
shares
$ / shares
Jun. 30, 2021
shares
$ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Balance at end of the end fiscal year Number 1,339,621 3,100,000 2,700,291
Granted during the fiscal year Number 1,624,499 339,621 1,350,000
Exercised during the fiscal year Number (706,173) (1,200,000) (950,291)
Lapsed during the fiscal year Number (364,866) (900,000) 0
Balance at end of the end fiscal year Number 1,893,081 1,339,621 3,100,000
Vested and exercisable at end of the fiscal year Number 0 0 0
November 25, 2016 [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date     November 25, 2016
Type of performance right granted     Director rights
Fair value | $ / shares     $ 0.38
Balance at end of the end fiscal year Number   0 273,637
Granted during the fiscal year Number     0
Exercised during the fiscal year Number     (273,637)
Lapsed during the fiscal year Number     0
Balance at end of the end fiscal year Number     0
Vested and exercisable at end of the fiscal year Number     0
November 17, 2017 [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date     November 17, 2017
Type of performance right granted     Director rights
Fair value | $ / shares     $ 0.21
Balance at end of the end fiscal year Number   0 426,654
Granted during the fiscal year Number     0
Exercised during the fiscal year Number     (426,654)
Lapsed during the fiscal year Number     0
Balance at end of the end fiscal year Number     0
Vested and exercisable at end of the fiscal year Number     0
November 16, 2018 [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date   November 16, 2018 November 16, 2018
Type of performance right granted   Director rights Director rights
Fair value | $ / shares   $ 0.39 $ 0.39
Balance at end of the end fiscal year Number 0 250,000 500,000
Granted during the fiscal year Number   0 0
Exercised during the fiscal year Number   (250,000) (250,000)
Lapsed during the fiscal year Number   0 0
Balance at end of the end fiscal year Number   0 250,000
Vested and exercisable at end of the fiscal year Number   0 0
November 1, 2019 [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date November 1, 2019 November 1, 2019 November 1, 2019
Type of performance right granted Director rights Director rights Director rights
Fair value | $ / shares $ 0.28 $ 0.28 $ 0.28
Balance at end of the end fiscal year Number 1,000,000 1,500,000 1,500,000
Granted during the fiscal year Number 0 0  
Exercised during the fiscal year Number (500,000) (500,000) 0
Lapsed during the fiscal year Number 0 0 0
Balance at end of the end fiscal year Number 500,000 1,000,000 1,500,000
Vested and exercisable at end of the fiscal year Number 0 0 0
October 27, 2020 [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date   October 27, 2020 October 27, 2020
Type of performance right granted   Director rights Director rights
Fair value | $ / shares   $ 0.255 $ 0.255
Balance at end of the end fiscal year Number 0 1,350,000 0
Granted during the fiscal year Number   0 1,350,000
Exercised during the fiscal year Number   (450,000) 0
Lapsed during the fiscal year Number   (900,000) 0
Balance at end of the end fiscal year Number   0 1,350,000
Vested and exercisable at end of the fiscal year Number   0 0
November 23, 2022 [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date November 23, 2022    
Type of performance right granted Director rights    
Fair value | $ / shares $ 0.31    
Balance at end of the end fiscal year Number 0    
Granted during the fiscal year Number 1,166,667    
Exercised during the fiscal year Number 0    
Lapsed during the fiscal year Number 0    
Balance at end of the end fiscal year Number 1,166,667 0  
Vested and exercisable at end of the fiscal year Number 0    
December 1, 2021 [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date December 1, 2021 December 1, 2021  
Type of performance right granted Director rights Director rights  
Fair value | $ / shares $ 0.49 $ 0.49  
Balance at end of the end fiscal year Number 339,621 0  
Granted during the fiscal year Number 0 339,621  
Exercised during the fiscal year Number (113,207) 0  
Lapsed during the fiscal year Number 0 0  
Balance at end of the end fiscal year Number 226,414 339,621 0
Vested and exercisable at end of the fiscal year Number 0 0  
November 23, 2022 [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date November 23, 2022    
Type of performance right granted Director rights    
Fair value | $ / shares $ 0.31    
Balance at end of the end fiscal year Number 0    
Granted during the fiscal year Number 457,832    
Exercised during the fiscal year Number (92,966)    
Lapsed during the fiscal year Number (364,866)    
Balance at end of the end fiscal year Number 0 0  
Vested and exercisable at end of the fiscal year Number 0