Annual report pursuant to Section 13 and 15(d)

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

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INTANGIBLE ASSETS, NET - Future amortization of current intangible assets (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
INTANGIBLE ASSETS, NET    
Amortization expense $ 7,453,004 $ 10,825,164
Future amortization of intangible assets, net    
2017 2,317,258  
2018 1,885,345  
2019 1,801,910  
2020 1,492,503  
2021 1,324,119  
2022 and thereafter 3,493,493  
Total $ 12,314,628