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Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2021
Disclosure of financial instruments [text block] [Abstract]  
Schedule of Financial Assets Measured at Fair Value
   Level 1   Level 2 
   U.S Dollars in thousands 
September 30, 2021        
Derivatives instruments  $
    -
   $(40)
           
September 30, 2020          
Derivatives instruments  $
-
   $329 
           
December 31, 2020          
Derivatives instruments  $
-
   $448