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Income Taxes (Detail) - Deferred tax assets (liabilities) - USD ($)
$ in Thousands
Sep. 30, 2017
Sep. 30, 2016
Deferred tax assets:    
Pension $ 2,470 $ 2,896
Intangibles 219 315
Other reserves and accruals 633 671
Inventory reserves and other 563 470
State credits, net of federal benefit 318 313
Federal and state net operating loss carryforwards 52 61
Foreign net operating loss carryforwards 1,531 1,704
Foreign exchange on intercompany loan (77) 0
Foreign tax credits 7 7
Depreciation and amortization (177) (203)
Gross deferred tax assets 5,539 6,234
Less: valuation allowance (2,712) (3,180)
Realizable deferred tax asset 2,827 3,054
Gross deferred tax liabilities 0 0
Net deferred tax assets $ 2,827 $ 3,054