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Inventories
3 Months Ended
Mar. 31, 2014
Inventory Disclosure [Abstract]  
Inventories
6. INVENTORIES
Inventories consisted of the following (in thousands):
 
March 31,
2014
 
December 31,
2013
Raw materials
$
1,005

 
$
1,318

Work in process
6,657

 
6,191

Finished goods
3,250

 
2,327

Total inventories
$
10,912

 
$
9,836