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Inventories (Tables)
9 Months Ended
Sep. 30, 2020
Inventories  
Components of inventories

The components of inventories are summarized below (in thousands):

September 30, 

December 31, 

    

2020

    

2019

 

Inventories:

Raw materials

$

23,078

$

20,677

Work in process

 

23,166

 

24,946

Finished goods

 

2,113

 

3,529

$

48,357

$

49,152