Accrued Liabilities

12 Months Ended

Dec. 31, 2011

Notes to Financial Statements

Accrued Liabilities

7. Accrued Liabilities

At December 31, 2011 and December 31, 2010, accrued liabilities consisted of the following:

	2011		2010
Accrued wages and benefits	$	1,242,449	$	1,075,538
Accrued expenses relating to vendors and others		129,727		135,168
Accrued warranty costs		20,000		38,787
Accrued interest payable relating to stockholder notes		22,103		13,305
	$	1,414,279	$	1,262,798