Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2018

Property Plant And Equipment [Abstract]

Summary of Property and Equipment

Property and equipment, net, consists of the following as of the dates indicated:

	March 31,			December 31,
	2018			2017
Furniture & fixtures	$	666,673		$	582,007
Leasehold improvements		1,887,113			1,863,698
Equipment used in manufacturing		2,147,331			1,963,558
Equipment used in research & development		1,355,839			1,328,556
Equipment used in the field		130,552			130,552
Software		373,683			373,683
Construction in progress		87,298			255,641
		6,648,489			6,497,695
Less: accumulated depreciation and amortization		(3,549,010	)		(3,192,805	)
	$	3,099,479		$	3,304,890