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Note 5 - Inventories (Tables)
3 Months Ended
Dec. 28, 2019
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
    December 28,
2019
  September 28,
2019
Finished goods   $
75,289
    $
120,726
 
Work in process    
151,488
     
182,863
 
Raw materials    
801,429
     
738,623
 
Total inventory, net   $
1,028,206
    $
1,042,212