Stockholders' Deficit - Summary of Options (Details) - $ / shares	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Stock Incentive Plan [Abstract]
Number of Shares, Options outstanding, beginning of year	4,525,340	5,308,617	5,726,874
Number of Shares, Options granted	880,681	955,361	1,216,729
Number of Shares, Options exercised	(1,097,500)	(1,202,575)	(535,730)
Number of Shares, Options expired or forfeited	(292,626)	(536,063)	(1,099,256)
Number of Shares, Options outstanding, end of year	4,015,895	4,525,340	5,308,617
Number of Shares, Options exercisable, end of year	2,733,842	3,115,798	4,121,942
Weighted Average Exercise Price, Options outstanding, beginning of year	$ 3.48	$ 3.41	$ 3.30
Weighted Average Exercise Price, Options granted	2.15	3.82	4.79
Weighted Average Exercise Price, Options exercised	2.53	2.46	3.36
Weighted Average Exercise Price, Options expired or forfeited	3.88	4.50	4.35
Weighted Average Exercise Price, Options outstanding, end of year	3.42	3.48	3.41
Weighted Average Exercise Price, Options exercisable, end of year	$ 3.64	$ 3.27	$ 3.18