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Inventories (Tables)
6 Months Ended
Jun. 30, 2022
Inventories [Abstract]  
Inventories
Inventories consist of the following:
 
   
June 30, 2022
   
December 31, 2021
 
Raw materials and work-in-process
 
$
4,485
   
$
3,201
 
Finished goods
   
422
     
288
 
Total inventories
 
$
4,907
   
$
3,489