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Inventories (Tables)
12 Months Ended
Dec. 31, 2020
Inventories  
Components of inventories

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

December 31, 

December 31, 

    

2020

    

2019

 

Inventories:

Raw materials

$

24,738

$

20,677

Work in process

 

24,215

 

24,946

Finished goods

 

2,562

 

3,529

$

51,515

$

49,152