v3.26.3
Financial instruments - Additional Information (Details) - USD ($)
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items]    
Cash equivalents $ 0 $ 0
Current derivative assets 64,000 254,000
Non-current derivative assets 0 41,000
Proceeds due on sale of VoIP Supply LLC $ 0 4,500,000
Foreign currency risk    
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items]    
Percentage of reasonably possible increase (decrease) in risk assumption 10.00%  
Increase (decrease) in total other comprehensive income (loss) $ 87,000 58,000
Interest rate risk    
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items]    
Percentage of reasonably possible increase (decrease) in risk assumption 1.00%  
Increase (decrease) in finance costs $ 240,000 $ 402,000