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Inventories
12 Months Ended
Dec. 31, 2020
Inventory, Net [Abstract]  
Inventories [Text Block]
6. Inventories

The components of inventories were as follows:
 December 31, 2020December 31, 2019
Raw materials$497,604 $467,912 
Work in progress152,360 162,670 
Finished goods304,760 280,051 
Subtotal954,724 910,633 
Less reserves(118,920)(104,492)
Total$835,804 $806,141 
At December 31, 2020 and 2019, approximately 4% and 8%, respectively, of the Company's total inventories were accounted for using the LIFO method.