Quarterly report pursuant to Section 13 or 15(d)

INTANGIBLE ASSETS - Future amortization of current intangible assets (Details)

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INTANGIBLE ASSETS - Future amortization of current intangible assets (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Future amortization of intangible assets, net        
2016 $ 3,549,245   $ 3,549,245  
2017 5,353,788   5,353,788  
2018 3,837,203   3,837,203  
2019 3,021,115   3,021,115  
2020 2,297,210   2,297,210  
2021 and thereafter 5,429,892   5,429,892  
Total 23,488,453   23,488,453  
Amortization expense $ 1,961,411 $ 3,029,000 $ 3,987,310 $ 5,627,461