Accrued expenses:

12 Months Ended

Sep. 30, 2011

Accrued expenses:

Accrued expenses:

8. Accrued expenses:

        Accrued expenses consist of the following:

	September 30, 2011		September 30, 2010
Warranty	$	955,549	$	933,270
Salary, benefits and payroll taxes		476,152		552,646
Professional fees		352,559		303,139
Income taxes payable		152,658		—
Materials on order		89,392		18,772
Other		525,079		777,233
	$	2,551,389	$	2,585,060