Inventory consisted of the following (in thousands):

 

 

 

December 31,

 

 

 

2016

 

 

2015

 

Raw materials

 

$

14,385

 

 

$

16,023

 

Work-in-process

 

 

3,235

 

 

 

2,155

 

Finished goods

 

 

14,061

 

 

 

9,742

 

Inventory

 

$

31,681

 

 

$

27,920