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Note 4 (Tables)
 3 Months Ended
May 31, 2016
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] The computation of weighted average common and common equivalent shares used in the calculation of basic and diluted EPS is shown below.

Earnings Per Share:
            
   
Three Months Ended May 31,
  
   
2016
    
2015
  
             
Net earnings
  
$
620,200
    
$
324,600
  
                 
Shares:
                
                 
Weighted average shares outstanding - basic
    
4,068,679
      
4,010,830
  
Assumed exercise of options
    
5,918
      
-
  
                 
Weighted average shares outstanding - diluted
    
4,074,597
      
4,010,830
  
                 
Basic Earnings Per Share
  
$
0.15
    
$
0.08
  
Diluted Earnings Per Share
  
$
0.15
    
$
0.08
  
                 
Stock options not considered above because they were antidilutive
    
-
      
10,000