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Note 10 - Income Taxes (Details) - Deferred income taxes (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Jun. 30, 2012
Deferred tax liabilities:    
Depreciation and amortization $ (18,778) $ (19,247)
Other   (1,832)
Total deferred tax liability (18,778) (21,079)
Deferred tax assets:    
Accrued compensation 3,464 3,966
Accrued expenses and reserves 2,429 6,242
Pension 12,246 19,985
Inventory 1,588 1,554
Other 806 1,678
Net operating loss and credit carry forwards 3,164 2,631
Total deferred tax asset 23,697 36,056
Less: Valuation allowance (520) (813)
Net deferred tax asset (liability) $ 4,399 $ 14,164