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Inventories
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Inventories
 
NOTE 3 – INVENTORIES:
 
    
December 31
 
    
    2021    
    
    2020    
 
    
 
 
    
 
 
 
    
U.S. dollars in thousands
 
Work in process
     4,718        1,400  
Finished goods
     4,604        1,759  
    
 
 
    
 
 
 
       9,322        3,159  
    
 
 
    
 
 
 
Inventories write-downs totaled to $0 thousand, $73 thousand and $170 thousand during the years ended December 31, 2021, 2020 and 2019, respectively.