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Note 14 - Earnings Per Share of Common Stock (Tables)
 12 Months Ended
Oct. 01, 2016
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
2016
 
  
2015
    
2014
  
Numerator for basic and diluted earnings per share:
                        
Net income
 
$
4,247,331
 
   $
3,993,398
    $
2,590,767
 
                         
Denominator:
                        
Denominator for basic earnings per share:
                        
Weighted average shares
 
 
2,734,862
 
    
2,978,107
     
2,948,992
 
Effect of dilutive securities:
                        
Employee stock options
 
 
23,257
 
    
27,975
     
44,341
 
Denominator for diluted earnings per share:
                        
Adjusted weighted average shares and assumed conversions
 
 
2,758,119
 
    
3,006,082
     
2,993,333
 
                         
Net income per share:
                        
Basic
 
$
1.55
 
   $
1.34
    $
0.88
 
Diluted
 
$
1.54
 
   $
1.33
    $
0.87