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Property and Equipment (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Mar. 31, 2018
Property and Equipment (Textual)        
Depreciation and amortization expense $ 132,035 $ 183,708 $ 439,807 $ 460,146