Note 8 - Taxes on Income (Tax Benefits) Components of Income Tax Expense (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
Federal	$ (2,112)us-gaap_CurrentFederalTaxExpenseBenefit	$ 8,603us-gaap_CurrentFederalTaxExpenseBenefit	$ 9,237us-gaap_CurrentFederalTaxExpenseBenefit
Foreign	10,586us-gaap_CurrentForeignTaxExpenseBenefit	6,078us-gaap_CurrentForeignTaxExpenseBenefit	9,704us-gaap_CurrentForeignTaxExpenseBenefit
State	2,635	527	995
Subtotal	11,109us-gaap_CurrentIncomeTaxExpenseBenefit	15,208us-gaap_CurrentIncomeTaxExpenseBenefit	19,936us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred:
Federal	(18,629)	(2,075)	(1,817)
Foreign	3,034	(727)	69
State	646	(252)	475
Subtotal	(14,949)us-gaap_DeferredIncomeTaxExpenseBenefit	(3,054)us-gaap_DeferredIncomeTaxExpenseBenefit	(1,273)us-gaap_DeferredIncomeTaxExpenseBenefit
Total tax provision	$ (3,840)us-gaap_IncomeTaxExpenseBenefit	$ 12,154us-gaap_IncomeTaxExpenseBenefit	$ 18,663us-gaap_IncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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