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Note 4 - Property and Equipment (Tables)
3 Months Ended
Dec. 31, 2016
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
December 31,
   
October 1,
 
   
2016
   
2016
 
Land
  $
469,718
    $
469,718
 
Land improvements
   
486,698
     
486,698
 
Buildings
   
7,009,278
     
7,003,652
 
Machinery and equipment
   
9,760,853
     
9,563,061
 
Furniture and fixtures
   
526,149
     
506,277
 
Construction in process
   
30,894
     
36,637
 
Automobiles
   
23,522
     
23,853
 
Property and equipment, cost    
18,307,112
     
18,089,896
 
Less accumulated depreciation
   
(14,137,514
)    
(13,973,826
)
Property and equipment, net   $
4,169,598
    $
4,116,070