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Basis of preparation - Additional information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Mar. 31, 2022
Sep. 30, 2022
Disclosure of subsidiaries [line items]      
Pension Obligation, Discount Rate   2.00%  
Remeasurement of defined benefit pension liability   $ 3,600,000 $ 3,618,000
Share Subscription Agreement      
Disclosure of subsidiaries [line items]      
Number of shares issued 3,123,865   3,123,865
Sale or issue of treasury shares $ 733,568    
Exchange Agreement      
Disclosure of subsidiaries [line items]      
Sale or issue of treasury shares $ 2,390,297