Note 7 - Stock Option Activity (Details) (USD $)	9 Months Ended
	Mar. 31, 2015	Jun. 30, 2014
Balance at June 30, 2014 (in shares)	3,370,592	2,463,369
Balance at June 30, 2014 (in dollars per share)	$ 6.30	$ 9.09
Granted (in shares)	1,355,000
Granted (in dollars per share)	$ 2.44
Forfeited or expired (in shares)	(447,777)
Forfeited or expired (in dollars per share)	$ 10
Balance	8 years 29 days