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(3) Inventories (Tables)
12 Months Ended
Dec. 26, 2020
Inventory Disclosure [Abstract]  
Inventories Current
   2020     2019  
Raw materials  $752,760   $778,409 
Work in process   2,800,226    1,898,916 
Finished goods   592,640    871,861 
Gross Inventory   4,145,626    3,549,186 
Reserve for obsolescence   (436,155)   (449,362)
Total  $3,709,471   $3,099,824