Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)	Sep. 30, 2016	Jun. 30, 2016
Condensed Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 64,767	$ 74,546
Property and equipment, accumulated depreciation	28,870,579	28,637,606
Unamortized debt issuance costs	$ 2,463,148	$ 2,645,602
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	155,000,000	155,000,000
Common stock, shares issued	95,977,580	95,867,298
Common stock, shares outstanding	95,942,855	95,832,573
Treasury stock, shares	34,725	34,725