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Financial instruments, risk management and capital management (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Financial instruments, risk management and capital management        
Cash and cash equivalents $ 100,333 $ 90,869 $ 15,818 $ 7,338
Foreign exchange gain (loss) 2,923 2,040 $ (869)  
Current liabilities 21,954 11,248    
Borrowings   4,284    
Credit risk        
Financial instruments, risk management and capital management        
Cash and cash equivalents $ 100,300 90,900    
Market risk        
Financial instruments, risk management and capital management        
Foreign currency exchange rate 16.8      
Foreign exchange gain (loss) $ 2,900      
Additional gain or loss recognized in profit or loss $ 5,300      
Increase in interest rate or currency rate 1.00%      
Liquidity risk        
Financial instruments, risk management and capital management        
Cash, cash equivalents and investments $ 132,800      
Current liabilities 17,600      
Financial liabilities measured at amortized cost        
Financial instruments, risk management and capital management        
Financial liabilities 17,608 9,297    
Financial liabilities measured at amortized cost | Borrowings        
Financial instruments, risk management and capital management        
Financial liabilities 4,640 4,284    
Financial liabilities measured at amortized cost | Trade payables and other        
Financial instruments, risk management and capital management        
Financial liabilities 3,965 2,553    
Financial liabilities measured at amortized cost | Accrued expenses and other current liabilities        
Financial instruments, risk management and capital management        
Financial liabilities 8,193 1,879    
Financial liabilities measured at amortized cost | Lease liabilities        
Financial instruments, risk management and capital management        
Financial liabilities 810 581    
Financial assets measured at amortized cost        
Financial instruments, risk management and capital management        
Financial assets 136,931 134,362    
Financial assets measured at amortized cost | Cash and cash equivalents        
Financial instruments, risk management and capital management        
Financial assets 100,333 90,869    
Financial assets measured at amortized cost | Investments        
Financial instruments, risk management and capital management        
Financial assets 32,535 42,334    
Financial assets measured at amortized cost | Other non-current assets and security deposits        
Financial instruments, risk management and capital management        
Financial assets 809 796    
Financial assets measured at amortized cost | Receivables and other        
Financial instruments, risk management and capital management        
Financial assets $ 3,254 $ 363