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Note 4 - Derivative Instruments and Hedging Activities (Details) (Forward Contracts [Member], USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Note 4 - Derivative Instruments and Hedging Activities (Details) [Line Items] |  |  |  |
Derivative, Notional Amount | $ 22,800,000 | $ 32,800,000 | $ 22,800,000 | $ 32,800,000
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net |  |  | 100,000 |
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments | (25,000) | 36,000 | (200,000) | (200,000)
Designated as Hedging Instrument [Member] |  |  |  |
Note 4 - Derivative Instruments and Hedging Activities (Details) [Line Items] |  |  |  |
Derivative, Notional Amount | 19,000,000 | 25,500,000 | 19,000,000 | 25,500,000
Derivative, Loss on Derivative |  |  |  | 400,000
Not Designated as Hedging Instrument [Member] |  |  |  |
Note 4 - Derivative Instruments and Hedging Activities (Details) [Line Items] |  |  |  |
Derivative, Notional Amount | 3,800,000 |  | 3,800,000 |
Derivative, Loss on Derivative | $ 100,000 | $ 200,000 | $ 20,000 |

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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 Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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- Definition Amount of decrease in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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- Definition Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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