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(6) Inventories
9 Months Ended
Sep. 26, 2020
Inventory Disclosure [Abstract]  
(6) Inventories

(6)  Inventories

Inventories consist of the following:

     September 26,      December 28,  
     2020      2019  
Raw materials  $968,182   $778,409 
Work in process   1,865,505    1,898,916 
Finished goods   1,789,740    871,861 
Total inventory   4,623,427    3,549,186 
           
Reserve for obsolescence   (436,155)   (449,362)
Inventories, net  $4,187,272   $3,099,824