Note 10 - Income Taxes - Deferred Income Taxes (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017
Depreciation and amortization	$ (39,775)	$ (55,041)
Withholding Taxes	(7,833)
Other
Total deferred tax liability	(47,608)	(55,041)
Accrued compensation	2,657	4,127
Accrued expenses and reserves	4,808	6,886
Pension	13,522	26,309
Inventory	1,613	2,677
Other	452	939
Net operating loss and credit carry forwards	8,668	6,773
Total deferred tax asset	31,720	47,711
Less: Valuation allowance	(3,482)	(1,530)
Net deferred tax liability	$ (19,370)	$ (8,860)