Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)	Mar. 31, 2016	Jun. 30, 2015
Condensed Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 85,254	$ 54,177
Property and equipment, accumulated depreciation	28,396,052	27,891,272
Unamortized debt issuance costs	$ 2,828,057	$ 3,375,423
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
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	155,000,000	155,000,000
Common stock, shares issued	94,836,015	94,546,578
Common stock, shares outstanding	94,801,290	94,511,853
Treasury stock, shares	34,725	34,725