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(3) Inventories (Tables)
12 Months Ended
Dec. 28, 2019
Inventory Disclosure [Abstract]  
Inventories
     2019      2018  
Raw materials  $778,409   $706,982 
Work in process   1,898,916    2,248,370 
Finished goods   871,861    693,943 
Gross Inventory    3,549,186    3,649,295 
Reserve for obsolescence   (449,362)   (456,362)
Total  $3,099,824   $3,192,933