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Note 16 - Net Loss Per Share (Tables)
 12 Months Ended
Sep. 30, 2018
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Years Ended September 30,
  
   
2018
    
2017
  
Numerator:
  
 
 
 
  
 
 
 
Net loss available to common stockholders
   $
(3,745,042
 )   $
(876,754
 )
                 
Denominator:
  
 
 
 
  
 
 
 
Weighted average common shares outstanding, basic and diluted
    
32,492,645
      
31,855,430
  
                 
Basic loss per common share
   $
(0.12
 )   $
(0.03
 )
Diluted loss per common share
   $
(0.12
 )   $
(0.03
 )
                 
Potentially dilutive securities outstanding at period end excluded from diluted computation as the inclusion would have been antidilutive:
                
Options
    
3,394,858
      
4,663,502
  
Restricted stock units
    
218,330
      
125,000
  
Total
    
3,613,188
      
4,788,502