Note 15 - Taxes On Income (Details) - Uncertain Tax Positions (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Uncertain Tax Positions [Abstract]
Gross unrecognized tax benefits at January 1	$ 1,892us-gaap_UnrecognizedTaxBenefits	$ 1,815us-gaap_UnrecognizedTaxBenefits
Decrease in tax positions for previous years	(104)
Increases in tax positions for previous years	115	59
Increases in tax positions for current year	71	109
Change in interest and linkage related to tax positions	(85)	193
Lapse in statute of limitations or finalization of tax assessment	(858)	(284)	(622)
Gross unrecognized tax benefits at December 31	$ 1,031us-gaap_UnrecognizedTaxBenefits	$ 1,892us-gaap_UnrecognizedTaxBenefits	$ 1,815us-gaap_UnrecognizedTaxBenefits

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of interest expense accrued for an underpayment of income taxes.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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-Name Accounting Standards Codification

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