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Marketable Securities and Investments - Additional Information (Details) - USD ($)
12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Investments Debt And Equity Securities [Abstract]    
Cost basis of marketable securities sold $ 430,100  
Net proceeds of marketable securities sold 462,075 $ (49,950)
Gain on sale of securities 31,975  
Other comprehensive income reclassification, reversal of unrealized gain 106,631  
Unrealized gain (loss) on marketable securities $ (8,711) $ 60,149