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Note 4 - Derivative Instruments and Hedging Activities - Foreign Currency Forward Contracts (Details) | Sep. 30, 2016 USD ($)
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Derivative, Notional Amount | $ 4,952,500
Weighted average exchange rate of U.S. dollars | 1.2885
Fair value | $ 85,769

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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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Data Type: | xbrli:pureItemType
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Period Type: | instant

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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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