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Note 5 - Property and Equipment (Tables)
 6 Months Ended
Apr. 01, 2017
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
April 1,
    
October 1,
  
   
2017
    
2016
  
Land
   $
469,718
    $
469,718
 
Land improvements
    
486,698
     
486,698
 
Buildings
    
7,018,079
     
7,003,652
 
Machinery and equipment
   
9,828,208
     
9,563,061
 
Furniture and fixtures
    
526,149
     
506,277
 
Construction in process
    
32,788
     
36,637
 
Automobiles
    
14,136
     
23,853
 
Property and equipment, cost
    
18,375,776
     
18,089,896
 
Less accumulated depreciation
    
14,316,932
     
13,973,826
 
Property and equipment, net
   $
4,058,844
    $
4,116,070