INVENTORIES
 3 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
INVENTORIES
INVENTORIES

At March 31, 2015 and December 31, 2014, inventories, net consisted of the following (in thousands):

 
March 31,
2015
 
December 31,
2014
Raw materials
$
10,839

 
$
11,461

Work-in-process
19,382

 
18,147

Finished goods
25,289

 
27,024

Total
$
55,510

 
$
56,632

 
 
 
 
Short-term portion
$
50,701

 
$
50,676

Long-term portion
$
4,809

 
$
5,956



Amortization expense related to the fair value step-up during the three months ended March 31, 2014 was approximately $2.9 million. The inventory fair value step-up was fully amortized as of June 30, 2014.