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Inventories (Tables)
3 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Schedule of inventories
Inventories consist of the following:
 
    
March 31,
2023
    
December 31,
2022
 
Raw materials
   $ 811      $ 763  
Work-in-process
     1,410        1,102  
Finished goods
     116        133  
    
 
 
    
 
 
 
Total inventories
   $ 2,337      $ 1,998