Annual report pursuant to Section 13 and 15(d)

Note 8 - Stockholders' Deficit (Details)

v3.10.0.1
Note 8 - Stockholders' Deficit (Details) - $ / shares
 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Shares purchasable under outstanding warrants, beginning 2,342,590 2,804,010
Stock purchase warrants issued 0  
Stock purchase warrants expired (141,643) (271,420)
Stock purchase warrants exchanged (460,157) (190,000)
Shares purchasable under outstanding warrants, ending 1,740,790 2,342,590
Shares purchasable under outstanding warrants, weighted average exercise price, beginning $ 1.97 $ 2.00
Stock purchase warrants issued, weighted average exercise price 0.00  
Stock purchase warrants expired, weighted average exercise price 0.60 1.40
Stock purchase warrants exchanged, weighted average exercise price 2.15 3.00
Shares purchasable under outstanding warrants, weighted average exercise price, ending $ 2.03 $ 1.97
Shares purchasable under outstanding warrants, remaining contractual term (Year) 8 months 27 days  
Minimum [Member]    
Shares purchasable under outstanding warrants, remaining contractual term (Year)   1 month 13 days
Maximum [Member]    
Shares purchasable under outstanding warrants, remaining contractual term (Year)   1 year 6 months 18 days