Accrued Liabilities

6 Months Ended

Jun. 30, 2019

Accrued Liabilities [Abstract]

Accrued Liabilities

8.

Accrued Liabilities

At June 30, 2019 and December 31, 2018, accrued liabilities consisted of the following:

	June 30, 2019		December 31, 2018
	(Unaudited)
Accrued wages and benefits	$	43,819	$	52,753
Accrued expenses relating to vendors and others		170,612		128,114
Accrued warranty costs		20,000		20,000
Accrued interest payable relating to stockholder notes		111,635		329,801
Deferred rent		—		74,689
	$	346,066	$	605,357