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Inventory (Tables)
9 Months Ended
Sep. 30, 2014
Inventory Disclosure [Abstract]  
Schedule of inventory
Inventory is valued at the lower of cost or market, on a first-in, first-out basis and consists of the following as of September 30, 2014 and December 31, 2013 (in thousands):
 
September 30,
2014
 
December 31,
2013
Raw materials
$
2,924

 
$
1,428

Finished goods
12,564

 
15,152

Total inventory
$
15,488

 
$
16,580