Fixed Assets

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Fixed Assets

(3) Fixed Assets

Depreciation and amortization expense for the years ended December 31, 2018, 2017, and 2016 was $181,047, $175,643, and $188,501, respectively. Fixed assets and their estimated useful lives as of December 31, 2018 and 2017 are as follows:

	2018			2017			Estimated useful life
Equipment and furniture	$	1,384,112		$	1,372,449		5 years
Trade show materials		775,654			775,654		5 years
Leasehold Improvements		584,967			584,967		Life of lease or estimated life of asset if shorter
		2,744,733			2,733,070
Less accumulated depreciation and amortization		(2,431,556	)		(2,250,509	)
	$	313,177		$	482,561