Inventories (Tables)

12 Months Ended

Dec. 31, 2018

Inventory Disclosure [Abstract]

Net components of inventories

The components of inventories are as follows:

	December 31, 2018		December 31, 2017
Finished goods	$	1,582,112	1,326,038
Work in process	165,616		159,921
Raw materials	539,887		462,704
Total inventories	$	2,287,615	1,948,663