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Note 8 - Derivative Instruments (Tables)
12 Months Ended
Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]
   

Net Gain (Loss) Recognized

 

(in thousands)

 

2014

   

2013

   

2012

 

Interest rate swap (CTI)

  $ (100 )   $ (167 )   $ (46 )

Fixed interest rate swap (ABL)

    (472 )     (309 )     -  

Metals swaps

    622       (1,037 )     (113 )

Embedded customer derivatives

    (934 )     1,037       113  

Total gain (loss)

  $ (884 )   $ (476 )   $ (46 )