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Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 57,531 $ 59,922
Consolidated VIE, liabilities $ 16,746,095 $ 19,460,257
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 500,000,000 500,000,000
Common stock, shares issued 28,514,816 22,054,816