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Income Taxes (Details 3) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Sep. 30, 2013
Deferred tax assets:    
Net non-U.S. operating loss carryforwards $ 592 $ 592
Employee benefits 2,581 1,884
Inventory reserves 495 521
Asset impairment reserve 0 27
Allowance for doubtful accounts 84 143
Foreign tax credits to undistributed earnings 1,940 1,932
Foreign tax credits 492 464
Other 87 105
Total deferred tax assets 6,271 5,668
Deferred tax liabilities:    
Depreciation (1,854) (2,524)
Unremitted foreign earnings (2,997) (3,002)
Prepaid expenses (580) (170)
Total deferred tax liabilities (5,431) (5,696)
Net deferred tax assets (liabilities) 840 (28)
Valuation allowance (823) (718)
Net deferred tax assets (liabilities) $ 17 $ (746)