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Inventories
 6 Months Ended
Jun. 30, 2016
Inventory Disclosure [Abstract]  
Inventories

Note 4. Inventories

The components of inventories consisted of the following:

 

 

 

June 30,

 

 

December 31,

 

(in thousands)

 

2016

 

 

2015

 

Raw materials

 

$

17,989

 

 

$

14,383

 

Work in process

 

 

20,963

 

 

 

13,146

 

Inventories

 

$

38,952

 

 

$

27,529