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Note 1 - Summary of Significant Accounting Policies (Tables)
12 Months Ended
Jun. 30, 2015
Notes Tables  
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
   
2015
   
2014
 
Warrants
    5,052,400       5,113,420  
Stock options
    2,952,062       1,253,035  
Restricted stock awards
    1,461,784       818,797  
Total
    9,466,246       7,185,252