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Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Schedule of inventories
   December 31 
   2021   2020 
         
Raw materials  $178   $116 
Inventory in progress   1,658    1,299 
Finished goods   4,673    4,389 
Net – advances from customers   (942)   (933)
           
   $5,567   $4,871