Quarterly report pursuant to Section 13 or 15(d)

Goodwill and other Intangible Assets, Net - Summary of Changes in Carrying Amount of Goodwill (Details)

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Goodwill and other Intangible Assets, Net - Summary of Changes in Carrying Amount of Goodwill (Details) - USD ($)
6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]    
Beginning Balance $ 15,617,308 $ 6,496,756
Acquisitions 663,037 2,650,492
Foreign currency translation (loss) gain (468,085) 34,993
Ending Balance $ 15,812,260 $ 9,182,241