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(6) Inventories - Inventories (Details) - USD ($)
Sep. 29, 2018
Dec. 30, 2017
Inventory Disclosure [Abstract]    
Raw materials $ 662,720 $ 478,567
Work in process 2,306,340 1,003,285
Finished goods 988,578 1,014,023
Total inventory 3,957,638 2,495,875
Reserve for obsolescence (386,362) (386,362)
Inventories, net $ 3,571,276 $ 2,109,513