Fair Value of Financial Instruments and Investments (Schedule of Cost, Gross Unrealized Gains, Gross Unrealized Losses and Fair Value of Available-For-Sale Securities by Major Security Type) (Details) - USD ($)	Mar. 31, 2016	Jun. 30, 2015
Investment in Fair Value [Line Items]
Amortized Cost	$ 5,391,816	$ 4,165,804
Gross Unrealized Gains	$ 1,300	1,288
Gross Unrealized Losses		(8,035)
Fair Value	$ 5,393,116	4,159,057
Certificates of deposit [Member]
Investment in Fair Value [Line Items]
Amortized Cost	$ 4,663,000	$ 3,272,000
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value	$ 4,663,000	$ 3,272,000
Municipal bonds [Member]
Investment in Fair Value [Line Items]
Amortized Cost	728,816	893,804
Gross Unrealized Gains	$ 1,300	1,288
Gross Unrealized Losses		(8,035)
Fair Value	$ 730,116	$ 887,057