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Note 5 - Inventories (Tables)
3 Months Ended
Dec. 26, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
December 26,
2020
 
September 26,
2020
Finished goods   $
38,740
    $
75,289
 
Work in process    
167,611
     
176,980
 
Raw materials    
759,267
     
649,782
 
Total inventory, net   $
965,618
    $
902,051