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Goodwill and impairment, Information (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Non-current assets [abstract]      
Goodwill $ 0 $ 634 $ 659
At Cost [Member]      
Non-current assets [abstract]      
Goodwill 617 634  
Impairment [Member]      
Non-current assets [abstract]      
Goodwill $ (617) $ 0