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Note 5 - Inventories (Tables)
6 Months Ended
Mar. 28, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
    March 28,
2020
  September 28,
2019
Finished goods   $
75,289
    $
120,726
 
Work in process    
215,423
     
182,863
 
Raw materials    
740,772
     
738,623
 
Total inventory, net   $
1,031,484
    $
1,042,212