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Summary of Significant Accounting Policies (Details) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Accounting Policies [Abstract]    
Accounts receivable $ 21,493,916 $ 18,249,273
Allowance for doubtful accounts (13,523,919) (9,976,941)
Accounts receivable, net $ 7,969,997 $ 8,272,332