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Intangible Assets (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Intangible Assets, Net (Excluding Goodwill) [Abstract]        
Amortization of intangible assets $ 717,100 $ 717,100 $ 1,434,200 $ 1,448,186