Note 6 - Non-vested Stock Options Activity (Details) - 12 months ended Jun. 30, 2015 - Non-vested Stock Options [Member] - $ / shares	Total
Outstanding at June 30, 2014 (in shares)	638,739
Outstanding at June 30, 2014 (in dollars per share)	$ 1.02
Granted (in shares)	2,369,250
Granted (in dollars per share)	$ 0.62
Vested (in shares)	(896,883)
Vested (in dollars per share)	$ 0.71
Forfeited/cancelled (in shares)	(326,973)
Forfeited (in dollars per share)	$ 0.69
Outstanding at June 30, 2015 (in shares)	1,784,133
Outstanding at June 30, 2015 (in dollars per share)	$ 0.61