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INVENTORIES
3 Months Ended
Mar. 31, 2014
Inventory Disclosure [Abstract]  
INVENTORIES
INVENTORIES

At March 31, 2014 and December 31, 2013, inventories consisted of the following (in thousands):

 
March 31,
2014
 
December 31,
2013
Raw materials
$
12,259

 
$
11,587

Work-in-process
22,256

 
22,139

Finished goods
28,856

 
30,305

Total
$
63,371

 
$
64,031

 
 
 
 
Short-term portion
$
57,506

 
$
58,059

Long-term portion
$
5,865

 
$
5,972



Inventory at March 31, 2014 includes $1.8 million, net of fair value step-up in basis that was recognized when the Company acquired eBioscience in 2012. Amortization expense related to the fair value step-up during the three months ended March 31, 2014 and 2013 was $2.9 million and $4.6 million, respectively.