Accounts Payable and Accrued Expenses (Detail) - Accounts payable and accrued expenses consist of the following (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Payables and Accruals [Abstract]
Accounts payable	$ 6,940	$ 9,458
Commissions	209	225
Compensation and fringe benefits	2,202	2,593
Professional fees and shareholders' reporting costs	450	572
Taxes, other than income	316	316
Warranty	109	146
Current portion of capital lease	0	13
Other	277	251
Accounts payable and accrued expenses	$ 10,503	$ 13,574