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Inventory
6 Months Ended
Jun. 30, 2012
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]

7. Inventory  

 

                Inventory as of June 30, 2012 and December 31, 2011 consisted of the following:

 

 

 

 

 

 

 

 

June 30, 2012

 

December 31, 2011

Raw materials and supplies

$

8,571,406 

 

$

9,159,004 

Work-in-process

95,992 

 

462,832 

Finished goods

843,921 

 

732,871 

 

$

9,511,319 

 

$

10,354,707