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Note 6 - Inventories (Tables)
3 Months Ended
Apr. 02, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

April 2,

2022

   

December 25,

2021

 
                 

Raw materials

  $ 2,166,385     $ 2,080,778  

Work in process

    1,880,465       1,309,572  

Finished goods

    987,076       805,159  
                 

Gross inventory

    5,033,926       4,195,509  

Reserve for obsolescence

    (328,400 )     (283,907 )
                 

Inventories, net

  $ 4,705,526     $ 3,911,602