Product Warranties

3 Months Ended

Jan. 31, 2012

(5) Product Warranties

As of January 31, 2012 and October 31, 2011, the Company's accrual for estimated product warranty claims totaled $158,000 and $175,000, respectively, and is included in accounts payable and accrued expenses. Warranty claims expense for the three months ended January 31, 2012 and 2011 totaled $17,732 and $54,075, respectively.

The following table summarizes the changes in the Company's accrual for product warranties during the three months ended January 31, 2012 and 2011:


	Three Months Ended January 31,
	Three Months Ended January 31,
	2012			2011

Balance at beginning of period	$	175,000		$	170,000
Liabilities accrued for warranties issued during the period		68,719			65,346
Warranty claims and costs paid during the period		(34,732	)		(14,075	)
Changes in liability for pre-existing warranties during the period		(50,987	)		(11,271	)
Balance at end of period	$	158,000		$	210,000