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Related Party Transactions (Details) - USD ($)
6 Months Ended 12 Months Ended
Dec. 31, 2019
Jun. 30, 2019
Related Party Transaction [Line Items]    
Less: allowance for doubtful accounts $ (48,433) $ (89,774)
Total 435,898 807,965
Tianjin Zhiyuan Investment Group Co., Ltd. [Member]    
Related Party Transaction [Line Items]    
Total $ 484,331 $ 897,739