Inventories (Tables)

6 Months Ended

Jun. 30, 2018

Inventory, Net [Abstract]

Components of Inventory

	June 30, 2018			December 31, 2017
Raw materials	$	392,774		$	400,009
Work in progress	172,959			128,296
Finished goods	307,850			251,402
Subtotal	873,583			779,707
Less reserves	(109,530		)	(102,664		)
Total	$	764,053		$	677,043