Income Taxes (Detail) - Deferred tax assets (liabilities) - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014
Deferred tax assets:
Pension	$ 2,023	$ 2,084
Intangibles	409	517
Other reserves and accruals	618	547
Inventory reserves and other	724	632
State credits, net of federal benefit	253	33
Federal and state net operating loss carryforwards	71	18
Foreign net operating loss carryforwards	2,093	1,940
Foreign tax credits	7	7
Depreciation and amortization	(126)	(22)
Gross deferred tax assets	6,072	5,756
Less: valuation allowance	(3,048)	(2,634)
Realizable deferred tax asset	3,024	3,122
Gross deferred tax liabilities	0	0
Net deferred tax assets	$ 3,024	$ 3,122