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Inventories (Tables)
3 Months Ended
Mar. 31, 2023
Inventories [Abstract]  
Inventories
The components of inventories were:

 
March 31, 2023
   
December 31, 2022
 
   
(In thousands)
 
             
Raw materials and purchased component parts
 
$
9,720
   
$
8,884
 
Finished goods
   
2,670
     
3,144
 
   
$
12,390
   
$
12,028