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Note 11 - Financial Instruments (Details) (Foreign Exchange Contract [Member], USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Note 11 - Financial Instruments (Details) [Line Items]
Derivative Asset, Notional Amount	$ 6,700,000us-gaap_DerivativeAssetNotionalAmount
Other Nonoperating Income (Expense) [Member]
Note 11 - Financial Instruments (Details) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(900,000)us-gaap_DerivativeGainLossOnDerivativeNet / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember / us-gaap_IncomeStatementLocationAxis = us-gaap_OtherNonoperatingIncomeExpenseMember	100,000us-gaap_DerivativeGainLossOnDerivativeNet / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember / us-gaap_IncomeStatementLocationAxis = us-gaap_OtherNonoperatingIncomeExpenseMember
Other Current Liabilities [Member]
Note 11 - Financial Instruments (Details) [Line Items]
Derivative Liability, Current	$ 50,000us-gaap_DerivativeLiabilitiesCurrent / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember

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Nominal or face amount used to calculate payments on the derivative asset.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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-Name Accounting Standards Codification

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