v3.26.3
Share-Based Payments - Summary of Performance Rights Granted (Detail) - Share consolidation adjustment [member]
 12 Months Ended
Jun. 30, 2026
shares
$ / shares
Jun. 30, 2025
shares
$ / shares
Jun. 30, 2024
shares
$ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Balance at start of the fiscal year Number 1,211,112 2,161,392 1,893,081
Granted during the fiscal year Number 4,339,509 0 768,311
Exercised during the fiscal year Number (855,556) (950,280) (500,000)
Lapsed during the fiscal year Number 0 0 0
Balance at end of the end fiscal year Number 4,695,065 1,211,112 2,161,392
Vested and exercisable at end of the fiscal year Number 0 0 231,517
November 1, 2019 [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date     November 1, 2019
Type of performance right granted     Director rights
Fair value | $ / shares [1]     $ 0.28
Balance at start of the fiscal year Number   0 500,000
Granted during the fiscal year Number     0
Exercised during the fiscal year Number     (500,000)
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 23, 2022 [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date November 23, 2022 November 23, 2022 November 23, 2022
Type of performance right granted Director rights Director rights Director rights
Fair value | $ / shares $ 0.31 [2] $ 0.31 [3] $ 0.31 [1]
Balance at start of the fiscal year Number 777,778 1,166,667 1,166,667
Granted during the fiscal year Number 0 0 0
Exercised during the fiscal year Number (388,889) (388,889) 0
Lapsed during the fiscal year Number 0 0 0
Balance at end of the end fiscal year Number 388,889 777,778 1,166,667
Vested and exercisable at end of the fiscal year Number 0 0 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 [3] $ 0.49 [1]
Balance at start of the fiscal year Number 0 226,414 226,414
Granted during the fiscal year Number   0 0
Exercised during the fiscal year Number   (226,414) 0
Lapsed during the fiscal year Number   0 0
Balance at end of the end fiscal year Number   0 226,414
Vested and exercisable at end of the fiscal year Number   0 113,207
October 24, 2023 [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date October 24, 2023 October 24, 2023 October 24, 2023
Type of performance right granted Director rights Director rights Director rights
Fair value | $ / shares $ 0.32 [2] $ 0.32 [3] $ 0.32 [1]
Balance at start of the fiscal year Number 100,000 178,356 0
Granted during the fiscal year Number 0 0 178,356
Exercised during the fiscal year Number (50,000) (78,356) 0
Lapsed during the fiscal year Number 0 0 0
Balance at end of the end fiscal year Number 50,000 100,000 178,356
Vested and exercisable at end of the fiscal year Number 0 0 28,356
October 24, 2023 [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date October 24, 2023 October 24, 2023 October 24, 2023
Type of performance right granted Director rights Director rights Director rights
Fair value | $ / shares $ 0.32 [2] $ 0.32 [3] $ 0.32 [1]
Balance at start of the fiscal year Number 333,334 589,955 0
Granted during the fiscal year Number 0 0 589,955
Exercised during the fiscal year Number (166,667) (256,621) 0
Lapsed during the fiscal year Number 0 0 0
Balance at end of the end fiscal year Number 166,667 333,334 589,955
Vested and exercisable at end of the fiscal year Number 0 0 89,954
November 27, 2025 [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date November 27, 2025    
Type of performance right granted Director rights    
Fair value | $ / shares [2] $ 0.285    
Balance at start of the fiscal year Number 0    
Granted during the fiscal year Number 1,573,646    
Exercised during the fiscal year Number (250,000)    
Lapsed during the fiscal year Number 0    
Balance at end of the end fiscal year Number 1,323,646 0  
Vested and exercisable at end of the fiscal year Number 0    
November 27, 2025 [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date November 27, 2025    
Type of performance right granted Director rights    
Fair value | $ / shares [2] $ 0.285    
Balance at start of the fiscal year Number 0    
Granted during the fiscal year Number 2,058,631    
Exercised during the fiscal year Number 0    
Lapsed during the fiscal year Number 0    
Balance at end of the end fiscal year Number 2,058,631 0  
Vested and exercisable at end of the fiscal year Number 0    
November 27, 2025 [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Grant date November 27, 2025    
Type of performance right granted Director rights    
Fair value | $ / shares [2] $ 0.285    
Balance at start of the fiscal year Number 0    
Granted during the fiscal year Number 707,232    
Exercised during the fiscal year Number 0    
Lapsed during the fiscal year Number 0    
Balance at end of the end fiscal year Number 707,232 0  
Vested and exercisable at end of the fiscal year Number 0    
[1] The weighted average share price on the exercising date during the financial year 2024 is $0.285.
[2] The weighted average share price on the exercising date during the financial year 2026 is $0.26.
[3] The weighted average share price on the exercising date during the financial year 2025 is $0.332.