Note 11 - Income Taxes (Details) - Components of Net Deferred Income Tax Asset (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Components of Net Deferred Income Tax Asset [Abstract]
Inventory valuation adjustments	$ 84,443us-gaap_DeferredTaxAssetsInventory	$ 114,063us-gaap_DeferredTaxAssetsInventory
Financial accruals	39,653	42,450
Federal net operating loss carryforwards	102,971	161,265
State net operating loss carryforwards	40,731	48,901
Tax credit carryforwards	4,428	4,445
Goodwill impairment charges	7,150	8,566
Other, net	(413)us-gaap_DeferredTaxAssetsOther	301us-gaap_DeferredTaxAssetsOther
Total deferred tax asset	278,963us-gaap_DeferredTaxAssetsGross	379,991us-gaap_DeferredTaxAssetsGross
Less: Valuation allowance	(2,561)	(4,591)
Net deferred tax asset	$ 276,402us-gaap_DeferredTaxAssetsNet	$ 375,400us-gaap_DeferredTaxAssetsNet

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Deferred Tax Assets, Goodwill Impairment Charges.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed.

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The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from other reserves and accruals not separately disclosed.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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