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Inventories (Tables)
3 Months Ended
Mar. 31, 2022
Inventory Disclosure [Abstract]  
Schedule of inventories
   March 31,
2022
   December 31,
2021
 
   (In thousands of
U.S. Dollars)
 
Raw materials  $1,463   $1,375 
Work-in-progress   24,285    14,375 
Finished goods   39,265    48,091 
Total inventories  $65,013   $63,841