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Note 4 - Net Income (Loss) Per Share of Common Stock (Tables)
 6 Months Ended
May 31, 2018
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
For the Three Months Ended
  
   
May 31, 2018
    
May 31, 2017
  
Numerator for basic and diluted (loss) earnings per common share:
                
                 
Net (loss) income from continuing operations
   $
(653,979
 )   $
(508,907
 )
Net (loss) income from discontinued operations
    
(11,799
 )    
(18,653
 )
Net (loss) income
   $
(665,778
 )   $
(527,560
 )
                 
Denominator:
                
For basic (loss) earnings per share - weighted average common shares outstanding
    
4,213,893
      
4,158,969
  
Effect of dilutive stock options
    
-
      
-
  
For diluted (loss) earnings per share - weighted average common shares outstanding
    
4,213,893
      
4,158,969
  
                 
                 
Earnings (Loss) per share - Basic:
                
Continuing Operations
   $
(0.16
 )   $
(0.12
 )
Discontinued Operations
   $
-
     $
-
  
Net Income (Loss) per share
   $
(0.16
 )   $
(0.12
 )
                 
Earnings (Loss) per share - Diluted:
                
Continuing Operations
   $
(0.16
 )   $
(0.12
 )
Discontinued Operations
   $
-
     $
-
  
Net Income (Loss) per share
   $
(0.16
 )   $
(0.12
 )
   
For the Six Months ended
  
   
May 31, 2018
    
May 31, 2017
  
Numerator for basic and diluted (loss) earnings per common share:
                
                 
Net (loss) income from continuing operations
   $
(1,181,377
 )   $
(762,547
 )
Net (loss) income from discontinued operations
    
(50,853
 )    
(15,041
 )
Net (loss) income
   $
(1,232,230
 )   $
(777,588
 )
                 
Denominator:
                
For basic (loss) earnings per share - weighted average common shares outstanding
    
4,192,592
      
4,142,672
  
Effect of dilutive stock options
    
-
      
-
  
For diluted (loss) earnings per share - weighted average common shares outstanding
    
4,192,592
      
4,142,672
  
                 
                 
Earnings (Loss) per share - Basic:
                
Continuing Operations
   $
(0.28
 )   $
(0.18
 )
Discontinued Operations
   $
(0.01
 )   $
-
  
Net Income (Loss) per share
   $
(0.29
 )   $
(0.18
 )
                 
Earnings (Loss) per share - Diluted:
                
Continuing Operations
   $
(0.28
 )   $
(0.18
 )
Discontinued Operations
   $
(0.01
 )   $
-
  
Net Income (Loss) per share
   $
(0.29
 )   $
(0.18
 )