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Note 5 - Derivative Instruments and Hedging Activities - Foreign Currency Forward Contracts (Details) $ in Thousands | Jun. 30, 2018 USD ($)
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Notional amount of U.S. dollars | $ 16,862
Weighted average exchange rate of U.S. dollars | 1.2828
Fair value | $ (364)
Foreign Exchange Forward 1 [Member] |
Notional amount of U.S. dollars | $ 6,130
Weighted average exchange rate of U.S. dollars | 1.2851
Fair value | $ (134)
Foreign Exchange Forward 2 [Member] |
Notional amount of U.S. dollars | $ 6,049
Weighted average exchange rate of U.S. dollars | 1.2802
Fair value | $ (144)
Foreign Exchange Forward 3 [Member] |
Notional amount of U.S. dollars | $ 1,640
Weighted average exchange rate of U.S. dollars | 1.2852
Fair value | $ (30)
Foreign Exchange Forward 4 [Member] |
Notional amount of U.S. dollars | $ 1,599
Weighted average exchange rate of U.S. dollars | 1.2831
Fair value | $ (29)
Foreign Exchange Forward 5 [Member] |
Notional amount of U.S. dollars | $ 1,444
Weighted average exchange rate of U.S. dollars | 1.2809
Fair value | $ (27)

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Average contractual rate at which a foreign currency can be purchased or sold. + References No definition available. + Details
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- Definition Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into. + References No definition available. + Details
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- Details
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