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INVENTORY
6 Months Ended
Jun. 27, 2020
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]

5. INVENTORY

 

Inventories are stated at standard cost adjusted to approximate the lower of cost (first-in, first-out method) or net realizable value and consist of the following at June 27, 2020 and December 28, 2019:

 

   June 27, 2020   December 28, 2019 
Raw materials  $2,598,727   $2,630,156 
Work-in-process   544,528    711,475 
Finished goods   568,792    427,065 
Total  $3,712,047   $3,768,696