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Income Taxes (Detail) - Deferred tax assets (liabilities) - USD ($)
$ in Thousands
Sep. 30, 2016
Sep. 30, 2015
Deferred tax assets:    
Pension $ 2,896 $ 2,023
Intangibles 315 409
Other reserves and accruals 671 618
Inventory reserves and other 470 724
State credits, net of federal benefit 313 253
Federal and state net operating loss carryforwards 61 71
Foreign net operating loss carryforwards 1,704 2,093
Foreign tax credits 7 7
Depreciation and amortization (203) (126)
Gross deferred tax assets 6,234 6,072
Less: valuation allowance (3,180) (3,048)
Realizable deferred tax asset 3,054 3,024
Gross deferred tax liabilities 0 0
Net deferred tax assets $ 3,054 $ 3,024