v3.25.2
Stock-based Compensation - CDI options (Details) - Equity Incentive Plan - Employee stock option - $ / shares
 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Nov. 30, 2022
Jun. 14, 2022
May 17, 2022
Oct. 28, 2021
May 20, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Exercise
price (in AUD per share) $ 0.3617 $ 0.3620          
Options outstanding              
Balance at
the start of
the year (in shares) 54,501,222 57,501,251          
Granted (in shares) 0 0          
Exercised (in shares) 0 (29)          
Expired/forfeited/other (in shares) (500,000) (3,000,000)          
Balance at the
end of the
year (in shares) 54,001,222 54,501,222          
Weighted-average exercise price              
Balance at
the start of
the year (in AUD per share) $ 0.3620 $ 0.3634          
Granted (in AUD per share) 0 0          
Exercised (in AUD per share) 0 0.3200          
Expired/
forfeited/
other (in AUD per share) 0.4000 0.4000          
Balance at the
end of the
year (in AUD per share) $ 0.3617 $ 0.3620          
Additional disclosures              
Options exercisable, Number of options (in shares) 18,151,222 18,151,222          
First range              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Exercise
price (in AUD per share) $ 0.2367            
Options outstanding              
Balance at the
end of the
year (in shares) 7,416,667            
Weighted-average exercise price              
Balance at the
end of the
year (in AUD per share) $ 0.2367            
Second range              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Exercise
price (in AUD per share) $ 0.32            
Options outstanding              
Balance at the
end of the
year (in shares) 10,734,584            
Weighted-average exercise price              
Balance at the
end of the
year (in AUD per share) $ 0.32            
Third range              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Exercise
price (in AUD per share) $ 0.40            
Options outstanding              
Balance at the
end of the
year (in shares) 35,850,000            
Weighted-average exercise price              
Balance at the
end of the
year (in AUD per share) $ 0.40            
May 20, 2021 | First range              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Exercise
price (in AUD per share)             $ 0.2367
Options outstanding              
Balance at
the start of
the year (in shares) 7,416,667 7,416,667          
Granted (in shares) 0 0          
Exercised (in shares) 0 0          
Expired/forfeited/other (in shares) 0 0          
Balance at the
end of the
year (in shares) 7,416,667 7,416,667          
Additional disclosures              
Options exercisable, Number of options (in shares) 7,416,667 7,416,667          
May 20, 2021 | Second range              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Exercise
price (in AUD per share)             0.3200
Options outstanding              
Balance at
the start of
the year (in shares) 10,734,555 10,734,584          
Granted (in shares) 0 0          
Exercised (in shares) 0 (29)          
Expired/forfeited/other (in shares) 0 0          
Balance at the
end of the
year (in shares) 10,734,555 10,734,555          
Additional disclosures              
Options exercisable, Number of options (in shares) 10,734,555 10,734,555          
May 20, 2021 | Third range              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Exercise
price (in AUD per share)             $ 0.4000
Options outstanding              
Balance at
the start of
the year (in shares) 16,000,000 16,000,000          
Granted (in shares) 0 0          
Exercised (in shares) 0 0          
Expired/forfeited/other (in shares) 0 0          
Balance at the
end of the
year (in shares) 16,000,000 16,000,000          
October 28, 2021              
Options outstanding              
Balance at
the start of
the year (in shares) 15,850,000 18,850,000          
Granted (in shares) 0 0          
Exercised (in shares) 0 0          
Expired/forfeited/other (in shares) (500,000) (3,000,000)          
Balance at the
end of the
year (in shares) 15,350,000 15,850,000          
October 28, 2021 | Third range              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Exercise
price (in AUD per share)           $ 0.4000  
May 17, 2022              
Options outstanding              
Balance at
the start of
the year (in shares) 400,000 400,000          
Granted (in shares) 0 0          
Exercised (in shares) 0 0          
Expired/forfeited/other (in shares) 0 0          
Balance at the
end of the
year (in shares) 400,000 400,000          
May 17, 2022 | Third range              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Exercise
price (in AUD per share)         $ 0.4000    
June 14, 2022              
Options outstanding              
Balance at
the start of
the year (in shares) 1,250,000 1,250,000          
Granted (in shares) 0 0          
Exercised (in shares) 0 0          
Expired/forfeited/other (in shares) 0 0          
Balance at the
end of the
year (in shares) 1,250,000 1,250,000          
June 14, 2022 | Third range              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Exercise
price (in AUD per share)       $ 0.4000      
November 30, 2022              
Options outstanding              
Balance at
the start of
the year (in shares) 2,850,000 2,850,000          
Granted (in shares) 0 0          
Exercised (in shares) 0 0          
Expired/forfeited/other (in shares) 0 0          
Balance at the
end of the
year (in shares) 2,850,000 2,850,000          
November 30, 2022 | Third range              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Exercise
price (in AUD per share)     $ 0.4000