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Note 2 - Derivative Instruments and Hedging Activities (Tables)
9 Months Ended
Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]
As of September 30, 2014:        
         

Commodity

Trade Date

Effective Date

Notional Amount

Termination Date

Copper

1/31/2014

2/1/2014

$ 3,879

12/31/2014

Copper

3/11/2014

4/1/2014

   3,014

12/31/2014

As of December 31, 2013:        
         

Commodity

Trade Date

Effective Date

Notional Amount

Termination Date

Copper

6/21/2013

10/1/2013

$ 2,169

6/30/2014

As of September 30, 2013:        
         

Commodity

Trade Date

Effective Date

Notional Amount

Termination Date

Copper

2/26/2013

3/1/2013

$ 2,677

12/31/2013

Copper

3/1/2013

3/1/2013

   2,636

12/31/2013

Copper

4/15/2013

5/1/2013

   4,033

12/31/2013

Copper

6/21/2013

10/1/2013

   2,169

6/30/2014

Schedule of Foreign Exchange Contracts, Statement of Financial Position [Table Text Block]

As of September 30, 2014:

       

Currency Denomination

 

Notional Amount

 
British Pound Sterling (GBP) to Euro   £ 3,000  
         

As of December 31, 2013:

       

Currency Denomination

 

Notional Amount

 

United States Dollar (USD) to Euro

  $ 650  
British Pound Sterling (GBP) to Euro   £ 4,000  
Schedule of Derivative Assets Liabilities at Fair Value [Table Text Block]
   

September 30,
201
4

   

December 31,
201
3

 

Commodity contracts

  $ (55 )   $ 69  

Foreign currency contracts

    (190 )     56  

Interest rate swaps

    103       1,236  
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]
    Amount of Gain
Recognized in Accumulated Other Comprehensive Loss for the Three Months Ended September 30,
  Location of Gain (Loss)
Recognized in Net I
ncome on Ineffective Portion of Hedges
  Amount of Loss
Reclassified from Accumulated Other Comprehensive Loss into Net Income for the Three Months Ended September 30,
    Amount of Gain (Loss)
Recognized in Net I
ncome on Hedges
(
Ineffective Portion) for the Three Months Ended September 30,
 
                                                   
    2014     2013       2014     2013     2014     2013  
Derivatives Designated as Hedging Instruments                                      
                                                   
Interest rate swaps   $ 989     $   Interest expense   $     $     $     $  
                                                   
Derivatives Not Designated as Hedging Instruments                                      
                                                   

Interest rate swaps (1)

  $     $  

Interest expense

  $     $ (376 )   $     $ 501  

Commodity and foreign currency contracts

  $     $  

Cost of goods sold

  $     $     $ (199 )   $ 578  
   

Amount of Loss
Recognized in Accumulated Other Comprehensive Loss for
the
Nine Months Ended
September 30,

  Location of Gain (Loss)
Recognized in Net Income on Ineffective Portion of Hedges
  Amount of Loss
Reclassified from Accumulated Other Comprehensive Loss into Net Income for the Nine Months Ended September 30,
    Amount of Gain (Loss)
Recognized in Net Income on Hedges
(
Ineffective Portion) for the Nine Months Ended September 30,
 
    2014     2013       2014     2013     2014     2013  
                                                   
Derivatives Designated as Hedging Instruments                                      
                                                   
Interest rate swaps   $ (719 )   $   Interest expense   $     $     $     $  
                                                   
Derivatives Not Designated as Hedging Instruments                                      
                                                   

Interest rate swaps (1)

  $     $  

Interest expense

  $     $ (2,381 )   $     $ 2,973  

Commodity and foreign currency contracts

  $     $  

Cost of goods sold

  $     $     $ (344 )   $ (540 )