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Note 14 - Financial Derivatives (Details) (USD $) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2013 | Dec. 31, 2012
Positive Fair Value Member |  |
Note 14 - Financial Derivatives (Details) [Line Items] |  |
Notional Amount Of Option Contract | $ 101,000 | $ 209,000
Open Option Contracts Written, at Fair Value |  | (2,000)
Sum of Spot and Forward Contract Notional Amount | 277,400,000 | 188,100,000
Increase Decrease in Fair Value | 5,800,000 | 2,900,000
Negative Fair Value Member |  |
Note 14 - Financial Derivatives (Details) [Line Items] |  |
Open Option Contracts Written, at Fair Value | (1,000) |
Sum of Spot and Forward Contract Notional Amount | 185,600,000 | 133,700,000
Increase Decrease in Fair Value | $ (4,700,000) | $ (1,600,000)

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- Definition Increase Decrease in Fair Value + References No definition available. + Details
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- Details
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- Definition Notional Amount Of Option Contract + References No definition available. + Details
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- Definition Sum of Spot and Forward Contract Notional Amount + References No definition available. + Details
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- Definition The fair value of the open option contracts written for the investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B.4,Column E) -URI http://asc.fasb.org/extlink&oid=6955306&loc=d3e611197-123010 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12B -Paragraph 4 -Article 12 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12B -Paragraph Column E -Article 12 + Details
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