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Note 38 - Events after the reporting period (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended 12 Months Ended
May 03, 2023
Nov. 23, 2022
May 25, 2022
May 26, 2021
May 25, 2022
May 26, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
May 24, 2023
Disclosure of non-adjusting events after reporting period [line items]                    
Dividends paid, ordinary shares per share (in dollars per share)   $ 0.17 $ 0.28 $ 0.14            
Dividends paid, per ADS (in dollars per share)   $ 0.34 $ 0.56 $ 0.28            
Dividends recognised as distributions to owners   $ 201,000 $ 331,000 $ 165,000 $ 484,000 $ 248,000 $ 541,674 $ 322,099 $ 87,938  
Annual Dividend Proposal [Member]                    
Disclosure of non-adjusting events after reporting period [line items]                    
Annual dividend proposed to be distributed (in dollars per share) $ 0.51                  
Annual dividend proposed to be distributed, amount per ads (in dollars per share) $ 1.02                  
Annual dividend proposed to be distributed $ 602,000                  
Dividends payable, amount per share (in dollars per share)                   $ 0.34
Dividends payable, amount per ads (in dollars per share)                   $ 0.68
Annual dividend payable                   $ 401,000