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Inventories
 12 Months Ended
Dec. 31, 2022
Inventories [Abstract]  
Inventories
5. Inventories


Inventories consist of the following (in thousands):

 
December 31,
  
 
2022
    
2021
  
Raw materials and work-in-process
  
$
5, 418
    
$
3,201
  
Finished goods
    
129
      
288
  
 
$
5,547
    
$
3,489