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Accounts Receivable, Net (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Accounts Receivable, Net (Textual)        
Provision for doubtful accounts $ 258,561 $ 445,119 $ 1,282,492 $ 1,396,951