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Investments (Tables)
12 Months Ended
Dec. 31, 2021
Investments [Abstract]  
Schedule of net gains and losses
   December 31,
2021
   December 31,
2020
 
   (In thousands of
U.S. Dollars)
 
Net gains recognized during the period on trading securities  $150   $131 
Less: Net (losses) and gains recognized during the period on trading securities sold during the period   186    77 
Unrealized gains recognized during the reporting period on trading securities still held at the reporting date  $(36)   54