Property and Equipment

9 Months Ended

Sep. 30, 2019

Property Plant And Equipment [Abstract]

Property and Equipment

Note 6. Property and Equipment

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

	September 30,			December 31,
	2019			2018
Furniture & fixtures	$	1,006,555		$	791,973
Leasehold improvements		1,978,255			1,930,300
Equipment used in manufacturing		2,299,854			2,297,797
Equipment used in research & development		1,883,775			1,456,954
Equipment used in the field		182,762			125,253
Software		373,683			373,683
Construction in progress		—			19,246
		7,724,884			6,995,206
Less: accumulated depreciation and amortization		(5,541,441	)		(4,621,416	)
	$	2,183,443		$	2,373,790

Depreciation and leasehold improvement amortization expense was $317,383 and $920,863 for the three and nine months ended September 30, 2019, respectively, and $347,886 and $1,126,230 for the three and nine months ended September 30, 2018, respectively.