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Inventories (Tables)
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventory   In thousand of US dollars  
    December 31, 2020     December 31, 2019  
    2020     2019  
             
Raw materials     95       18  
Work in process     155       86  
Finished products     34       80  
      284       184