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Note 2 - Derivative Instruments and Hedging Activities (Details) - Derivative Impact on Condensed Consolidated Statements of Income (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Interest Expense [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |  |  |  |
Note 2 - Derivative Instruments and Hedging Activities (Details) - Derivative Impact on Condensed Consolidated Statements of Income [Line Items] |  |  |  |  |  |  |  |
Amount of loss recognized in Accumulated Other Comprehensive Loss | $ (1,208) |  |  |  | $ (1,708) |  |  |
Interest Expense [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |  |  |  |
Note 2 - Derivative Instruments and Hedging Activities (Details) - Derivative Impact on Condensed Consolidated Statements of Income [Line Items] |  |  |  |  |  |  |  |
Amount of loss recognized in Accumulated Other Comprehensive Loss | 0 | [1] | 0 | [1] | 0 | [1] | 0 | [1]
Amount of loss reclassified from Accumulated Other Comprehensive Loss into Net Income | 0 | [1] | (1,003) | [1] | 0 | [1] | (2,005) | [1]
Amount of gain (loss) recognized in Net Income on hedges (ineffective portion) | 0 | [1] | 1,266 | [1] | 0 | [1] | 2,472 | [1]
Cost of Sales [Member] | Not Designated as Hedging Instrument [Member] | Commodity Contract [Member] |  |  |  |  |  |  |  |
Note 2 - Derivative Instruments and Hedging Activities (Details) - Derivative Impact on Condensed Consolidated Statements of Income [Line Items] |  |  |  |  |  |  |  |
Amount of loss recognized in Accumulated Other Comprehensive Loss | 0 |  | 0 |  | 0 |  | 0 |
Amount of loss reclassified from Accumulated Other Comprehensive Loss into Net Income | 0 |  | 0 |  | 0 |  | 0 |
Amount of gain (loss) recognized in Net Income on hedges (ineffective portion) | $ 224 |  | $ (826) |  | $ (144) |  | $ (1,118) |
[1] | Amounts recorded for the three and six months ended June 30, 2013 relate to interest rate swap agreements outstanding as of May 30, 2012, the date the hedging relationships for these agreements were terminated.

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- Definition The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings. + References No definition available. + Details
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- Definition The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness. + 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 (d) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1),(2) -URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986 + Details
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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + 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 (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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