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Inventory (Tables)
 12 Months Ended
Dec. 31, 2013
Inventory  
Schedule of the components of the Company's biopolymer inventories
 
   Year ended
December 31		  
 
   2013   2012  

Raw materials

   $ 537   $ 640  

Work-in-process

     —     2  

Finished goods

     3,537     2,562  
           
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Total inventory

   $ 4,074   $ 3,204  
           
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