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Inventories (Tables)
12 Months Ended
Dec. 31, 2022
Inventories [Abstract]  
Inventories
The components of inventories are:

 
December 31,
 
(In thousands)
 
2022
     
2021
*
Raw materials and purchased component parts
 
$
8,884
   
$
5,499
 
Work-in-process
   
     
11
 
Finished goods
   
3,144
     
2,201
 
   
$
12,028
   
$
7,711
 
*
see Note 16, Change in Accounting Principle