Warranty:

12 Months Ended

Sep. 30, 2011

Warranty:

Warranty:

9. Warranty:

        The Company provides for the estimated cost of product warranties at the time revenue is recognized. Warranty cost is recorded as cost of sales and the reserve balance recorded as an accrued expense in the financial statements. While the Company engages in extensive product quality programs and processes, the Company's warranty obligation is affected by product failure rates and the related material, labor and delivery costs incurred in correcting a product failure. If actual product failure rates, material or labor costs differ from the Company's estimates, further revisions to the estimated warranty liability would be recorded.

        Warranty cost and accrual information for fiscal years ended September 30, 2011 and 2010:

	2011			2010
Warranty Accrual as of October 1,	$	933,270		$	808,544
Accrued expense for fiscal year		244,408			410,551
Warranty cost incurred for fiscal year		(222,129	)		(285,825	)
Warranty accrual as of September 30,	$	955,549		$	933,270