Inventory (Details) (USD $)
Sep. 30, 2012
Dec. 31, 2011
Inventory Disclosure [Abstract]    
Raw materials and supplies $ 9,479,058 $ 9,159,004
Work-in-process 18,584 462,832
Finished goods 3,507,478 732,871
Inventory $ 13,005,120 $ 10,354,707