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Note 10 - Derivative Instruments (Details) - Impact to Consolidated Statements of Operations of Derivatives (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Note 10 - Derivative Instruments (Details) - Impact to Consolidated Statements of Operations of Derivatives [Line Items]      
Derivative $ (476) $ (46) $ (68)
Interest Rate Swap [Member]
      
Note 10 - Derivative Instruments (Details) - Impact to Consolidated Statements of Operations of Derivatives [Line Items]      
Derivative (167) (46) (68)
Fixed Interest Rate Swap [Member]
      
Note 10 - Derivative Instruments (Details) - Impact to Consolidated Statements of Operations of Derivatives [Line Items]      
Derivative (309)    
Nickel Swaps [Member]
      
Note 10 - Derivative Instruments (Details) - Impact to Consolidated Statements of Operations of Derivatives [Line Items]      
Derivative (1,037) (113) (208)
Embedded Customer Derivatives [Member]
      
Note 10 - Derivative Instruments (Details) - Impact to Consolidated Statements of Operations of Derivatives [Line Items]      
Derivative $ 1,037 $ 113 $ 208