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ACCOUNTS RECEIVABLE (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Accounts Receivable, Net, Current [Abstract]    
Accounts receivable trade $ 9,859,758 $ 12,925,059
Allowance for doubtful accounts (831,768) (1,636,068)
Accounts receivable trade, net $ 9,027,990 $ 11,288,991