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 ($)	Dec. 31, 2015	Jun. 30, 2015
Investment in Fair Value [Line Items]
Amortized Cost	$ 5,229,772	$ 4,165,804
Gross Unrealized Gains	1,198	1,288
Gross Unrealized Losses	(6,600)	(8,035)
Fair Value	5,224,370	4,159,057
Certificates of deposit [Member]
Investment in Fair Value [Line Items]
Amortized Cost	$ 4,405,000	$ 3,272,000
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value	$ 4,405,000	$ 3,272,000
Municipal bonds [Member]
Investment in Fair Value [Line Items]
Amortized Cost	824,772	893,804
Gross Unrealized Gains	1,198	1,288
Gross Unrealized Losses	(6,600)	(8,035)
Fair Value	$ 819,370	$ 887,057