Inventories as of December 31, 2016 and 2015 consist of the following:

 

In thousands    December 31, 2016      December 31, 2015  

Raw materials

   $ 4,430      $ 9,096  

Work in process

     10,716        1,640  

Finished goods

     5,361        8,249  
  

 

 

    

 

 

 

Total inventory

   $ 20,507      $ 18,985