v3.26.3
Share-Based Payments - Summary of Options Granted (Detail)
12 Months Ended
Jun. 30, 2026
shares
$ / shares
Jun. 30, 2025
shares
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Granted during the fiscal year Number 0 0
Ridgeback Capital Investments and Trout Group LLC. [member]    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Balance at start of the fiscal year 847,600  
Granted during the fiscal year Number 0  
Exercised during the fiscal year Number (847,600)  
Forfeited during the fiscal year Number 0  
Balance at end of the fiscal year 0 847,600
Vested and exercisable at end of the fiscal year Number 0  
July 31,2015 [member] | Ridgeback Capital Investments and Trout Group LLC. [member]    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Grant date July 31, 2015  
Expiry date August 4, 2025  
Exercise price | $ / shares $ 0.24  
Balance at start of the fiscal year 847,600  
Granted during the fiscal year Number 0  
Exercised during the fiscal year Number (847,600)  
Forfeited during the fiscal year Number 0  
Balance at end of the fiscal year 0 847,600
Vested and exercisable at end of the fiscal year Number 0