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Inventories (Tables)
 12 Months Ended
Dec. 31, 2019
Inventories  
Components of inventories

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

 

 

 

 

 

 

 

 

 

 

December 31, 

 

December 31, 

 

 

    

2019

    

2018

 

Inventories:

 

 

 

 

 

 

 

Raw materials

 

$

20,677

 

$

26,966

 

Work in process

 

 

24,946

 

 

28,217

 

Finished goods

 

 

3,529

 

 

3,388

 

 

 

$

49,152

 

$

58,571