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Inventories
6 Months Ended
Jun. 30, 2022
Inventories [Abstract]  
Inventories
3. Inventories

The components of inventories were:

 
June 30, 2022
   
December 31, 2021
 
   
(In thousands)
 
             
Raw materials and purchased component parts
 
$
9,242
   
$
6,470
 
Work-in-process
   
     
11
 
Finished goods
   
1,665
     
1,230
 
   
$
10,907
   
$
7,711