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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 58,707 $ 37,626
Consolidated VIE, liabilities $ 34,008,908 $ 31,235,520
Common stock, shares authorized 500,000,000 500,000,000
Common stock, par value $ 0.001 $ 0.001
Common stock, shares issued 20,022,316 21,450,316
Common stock, shares outstanding 20,022,316 21,450,316