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Note 4 - Derivative Instrument Assets/Liabilities (Details) (Forward Contracts [Member], USD $) In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Note 4 - Derivative Instrument Assets/Liabilities (Details) [Line Items] |  |
Derivative Asset, Notional Amount | $ 26.5 | $ 29.3
Designated as Hedging Instrument [Member] |  |
Note 4 - Derivative Instrument Assets/Liabilities (Details) [Line Items] |  |
Derivative Asset, Notional Amount | $ 20.6 | $ 15.1

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- Definition Nominal or face amount used to calculate payments on the derivative asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 + Details
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