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Intangible Assets (Details) (USD $)
Sep. 30, 2013
Jun. 30, 2013
Dec. 31, 2012
Intangible Assets Details      
Gross carrying amount $ 621,302   $ 621,302
Accumulated amortization (594,122)   (585,905)
Intangible assets, net $ 27,180 $ 35,397