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Note 3 - Fair Value of Financial Instruments (Tables)
 6 Months Ended
Apr. 01, 2017
Notes Tables  
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]
   
 
 
 
Total
    
Quoted
prices in
active
markets
(Level 1)
    
Significant
other
observable
inputs
(Level 2)
    
Significant
unobservable
inputs
(Level 3)
  
                                 
Cash value of life insurance policies:
                                
                                 
April 1, 2017
   $
149,206
      
--
    $
149,206
     
--
  
October 1, 2016    
2,697,465
      
--
      
2,697,465
      
--