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Note 3 - Fair Value Measurements (Details) - Assets and Liabilities Measured at Fair Value (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
    
Note 3 - Fair Value Measurements (Details) - Assets and Liabilities Measured at Fair Value [Line Items]    
Fair value of derivatives $ 103 $ 1,236
Fair Value, Inputs, Level 2 [Member] | Commodity Contract [Member]
    
Note 3 - Fair Value Measurements (Details) - Assets and Liabilities Measured at Fair Value [Line Items]    
Fair value of derivatives (55) 69
Fair Value, Inputs, Level 2 [Member] | Foreign Exchange Contract [Member]
    
Note 3 - Fair Value Measurements (Details) - Assets and Liabilities Measured at Fair Value [Line Items]    
Fair value of derivatives (190) 56
Interest Rate Swap [Member]
    
Note 3 - Fair Value Measurements (Details) - Assets and Liabilities Measured at Fair Value [Line Items]    
Fair value of derivatives 103 1,236
Commodity Contract [Member]
    
Note 3 - Fair Value Measurements (Details) - Assets and Liabilities Measured at Fair Value [Line Items]    
Fair value of derivatives (55) 69
Foreign Exchange Contract [Member]
    
Note 3 - Fair Value Measurements (Details) - Assets and Liabilities Measured at Fair Value [Line Items]    
Fair value of derivatives $ (190) $ 56