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Business Overview and Basis of Presentation - Narratives (Details)
9 Months Ended
Mar. 31, 2016
USD ($)
subsidiary
Mar. 31, 2015
USD ($)
Business Overview and Basis of Presentation [Abstract]    
Number of subsidiaries | subsidiary 2  
Cash, cash equivalents and marketable securities $ 61,600,000  
Cash, cash equivalents and marketable securities utilized in operating activities $ 35,918,173 $ 30,379,543