ACCRUED LIABILITIES (Tables)

3 Months Ended

Mar. 31, 2018

Accrued liabilities were comprised of the following:

	March 31, 2018		December 31, 2017

Accrued compensation and related taxes	$	588,200	$	608,000
Accrued interest		157,100		105,700
Warranty and defect claims		46,100		71,700
Other		416,200		522,200
Total Accrued Liabilities	$	1,207,600	$	1,307,600