Inventories

12 Months Ended

Dec. 31, 2018

Inventory, Net [Abstract]

Inventories [Text Block]

6. Inventories

The components of inventories were as follows:

	December 31, 2018		December 31, 2017
Raw materials	$	439,616	$	400,009
Work in progress	154,878		128,296
Finished goods	265,722		251,402
Subtotal	860,216		779,707
Less reserves	(111,420)		(102,664)
Total	$	748,796	$	677,043

At December 31, 2018 and 2017, approximately 11% of the Company's total inventories were accounted for using the LIFO method.