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Inventories (Tables)
6 Months Ended
Jun. 30, 2019
Inventories  
Components of inventories

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

 

 

 

 

 

 

 

 

 

 

 

June 30, 

 

December 31, 

 

 

    

2019

    

2018

 

Inventories:

 

 

 

 

 

 

 

Raw materials

 

$

24,276

 

$

26,966

 

Work in process

 

 

23,491

 

 

28,217

 

Finished goods

 

 

2,559

 

 

3,388

 

 

 

$

50,326

 

$

58,571