Inventories

12 Months Ended

Dec. 31, 2017

Inventory, Net [Abstract]

Inventories [Text Block]

5. Inventories

The components of inventories were as follows:

	December 31, 2017			December 31, 2016
Raw materials	$	445,417		$	428,286
Work in progress	139,175			138,652
Finished goods	418,818			409,314
Subtotal	1,003,410			976,252
Less reserves	(124,775		)	(105,765		)
Total	$	878,635		$	870,487

At December 31, 2017 and 2016, approximately 15% and 16%, respectively, of the Company's total inventories were accounted for using the LIFO method.