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Inventories (Tables)
9 Months Ended
Sep. 30, 2015
Inventories [Abstract]  
Components of inventories

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

 

 

 

 

 

 

 

 

 

 

 

September 30, 

 

December 31, 

 

 

    

2015

    

2014

 

Inventories:

 

 

 

 

 

 

 

Raw materials

 

$

20,378

 

$

18,990

 

Work in process

 

 

15,077

 

 

16,222

 

Finished goods

 

 

2,632

 

 

3,362

 

 

 

$

38,087

 

$

38,574