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Note 5 - Net Income (Loss) Per Share of Common Stock (Tables)
3 Months Ended
Feb. 29, 2020
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
For the Three Months Ended
 
   
February 29, 2020
   
February 28, 2019
 
Numerator for basic and diluted net income (loss) per share:
               
Net income (loss)
  $
(437,192
)   $
(605,932
)
                 
Denominator:
               
For basic net income (loss) per share - weighted average common shares outstanding
   
4,315,481
     
4,243,707
 
Effect of dilutive stock options
   
-
     
-
 
For diluted net income (loss) per share - weighted average common shares outstanding
   
4,315,481
     
4,243,707
 
                 
Net Income (Loss) per share - Basic:
               
Net Income (Loss) per share
  $
(0.10
)   $
(0.14
)
                 
Net Income (Loss) per share - Diluted:
               
Net Income (Loss) per share
  $
(0.10
)   $
(0.14
)