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Note 5 - Loss Per Share (Tables)
12 Months Ended
Jun. 30, 2018
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Year Ended June
30, 2018
 
   
Loss
   
Weighted
Average
Shares
   
Loss Per
Share
 
Basic and Diluted Loss per Share:
 
 
 
 
 
 
 
 
 
 
 
 
Net loss attributable to common stock
  $
6,188,810
     
5,675,366
    $
1.09
 
   
Year Ended June
30, 2017
 
   
Loss
   
Weighted
Average
Shares
   
Loss Per
Share
 
Basic and Diluted Loss per Share:
 
 
 
 
 
 
 
 
 
 
 
 
Net loss attributable to common stock
  $
2,836,453
     
4,608,177
    $
0.62