Inventories (Tables)

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

Inventories consist of the following:

	June 30,		December 31,
	2018		2017
Raw materials	$	205,463	$	190,045
Work-in-process	400,834		302,042
Finished goods	26,571		21,791
Deferred costs	295,685		212,260
	$	928,553	$	726,138