CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Mar. 31, 2018	Jun. 30, 2017
Accounts receivable, allowance for doubtful accounts	$ 1,941	$ 9,371
Property and equipment, accumulated depreciation	30,501,227	29,560,955
Unamortized debt issuance costs	$ 273,683	$ 1,915,781
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	167,255,886	110,344,643
Common stock, shares outstanding	167,221,161	110,309,918
Treasury stock, shares	34,725	34,725
Convertible preferred stock
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	1,000,000
Preferred stock, shares outstanding	0	1,000,000