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Note E - Accumulated Other Comprehensive Income (Loss) (Details) - Components of Accumulated Other Comprehensive Loss as Reported in the Consolidated Balance Sheet (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			$ (16,282)
Current period credit (charge)	455	453	3,033	1,351
Income tax expense	332	(3)	1,524	(5)
Balance	(14,128)		(14,128)
Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			319	(118)
Current period credit (charge)			(879)	489
Balance	(560)	371	(560)	371
Pension and OPEB Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(16,601)	(15,926)
Current period credit (charge)			4,557	1,346
Income tax expense			(1,524)	5
Balance	(13,568)	(14,575)	(13,568)	(14,575)
Accumulated Other Comprehensive Income Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(16,282)	(16,044)
Current period credit (charge)			3,678	1,835
Income tax expense			(1,524)	5
Balance	$ (14,128)	$ (14,204)	$ (14,128)	$ (14,204)

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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