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Inventory
9 Months Ended
Sep. 30, 2012
Inventory

Note 3 — Inventory

Inventory consists of the following (in thousands):

 

     September 30,
2012
     December 31,
2011
 

Raw materials

   $ 12,083       $ 9,754   

Work-in-process

     3,586         1,219   

Finished goods

     1,085         1,683   
  

 

 

    

 

 

 

Total

   $ 16,754       $ 12,656   
  

 

 

    

 

 

 

Inventory is generally manufactured upon receipt of firm purchase orders from our collaboration partners. Inventory includes direct materials, direct labor, and manufacturing overhead and is determined on a first-in, first-out basis. Raw materials include manufactured intermediate materials which are subsequently combined with other materials to make work-in-process and finished goods inventory. Inventory is stated at the lower of cost or market and is net of reserves determined using specific identification plus an estimated reserve for defective or excess inventory based on historical experience or projected usage.