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Revenue Recognition - Schedule of Revenues in Excess of Billings and Deferred Revenue (Details) - USD ($)
Sep. 30, 2019
Jun. 30, 2019
Revenue Recognition and Deferred Revenue [Abstract]    
Revenues in excess of billings $ 17,640,189 $ 16,111,366
Deferred Revenue $ 4,424,652 $ 5,977,736