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Inventories
 6 Months Ended
Jul. 03, 2021
Inventory Disclosure [Abstract]  
Inventories
3.
Inventories
Inventories are stated at the lower of average cost or net realizable value and consist of the following:
 
    
July 3,
2021
     
January 2,
2021
  
    
(In thousands)
  
Raw materials
    $ 11,007      $ 9,999  
Work-in-progress
      5,046        4,832  
Finished goods
      4,471        6,858  
    
 
 
     
 
 
  
     $ 20,524      $ 21,689  
    
 
 
     
 
 
  
Finished goods inventory at July 3, 2021 included one VERTEX SPECTRA system for DCP at a customer’s factory previously under evaluation for which the evaluation period has ended but the tool is being considered for another application at that site. Finished goods inventory at January 2, 2021 included one VERTEX SPECTRA system for DCP under evaluation at a customer’s factory and one MATRIX PVD system for advanced semiconductor packaging under evaluation at a customer’s factory.