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Note 6 - Inventories (Tables)
9 Months Ended
Oct. 01, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

October 1,

  

December 25,

 
  

2022

  

2021

 

Raw materials

 $2,427,477  $2,080,778 

Work in process

  2,032,969   1,309,572 

Finished goods

  574,417   805,159 

Total inventory

  5,034,863   4,195,509 
         

Reserve for obsolescence

  (166,313)  (283,907)

Inventories, net

 $4,868,550  $3,911,602