Annual report pursuant to Section 13 and 15(d)

Note 7 - Warrant Activity (Details)

v3.5.0.2
Note 7 - Warrant Activity (Details) - $ / shares
 12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Minimum [Member]      
Shares purchasable under outstanding warrants, remaining contractual term 346 days 1 year 193 days 1 year 346 days
Stock purchase warrants issued   1 year 193 days  
Maximum [Member]      
Shares purchasable under outstanding warrants, remaining contractual term 3 years 273 days 3 years 255 days 3 years 255 days
Stock purchase warrants issued   2 years 197 days  
Shares purchaseable under outstanding warrants, number of shares (in shares) 28,040,096 22,798,347  
Shares purchasable under outstanding warrants, weighted average exercise price (in dollars per share) $ 0.21 $ 1.21  
Stock purchase warrants issued (in shares)   5,241,749  
Stock purchase warrants issued (in dollars per share)   $ 0.22  
Stock purchase warrants exercised (in shares)    
Stock purchase warrants exercised (in dollars per share)    
Shares purchasable under outstanding warrants, number of shares (in shares)   28,040,096 22,798,347
Shares purchasable under outstanding warrants, weighted average exercise price (in dollars per share) $ 0.21 $ 0.21 $ 1.21