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COMMITMENTS AND CONTINGENCIES (Tables)
 12 Months Ended
Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Loss Contingencies by Contingency
   
      Total         Less than 1 year         1-3 years         3-5 years         More than 5 years    
Contractual obligations                              
Operating leases   $ 15,592,733     $ 1,081,927     $ 2,084,258     $ 2,154,566     $ 10,271,981  
    Total   $ 15,592,733     $ 1,081,927     $ 2,084,258     $ 2,154,566     $ 10,271,981