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Note 11 - Derivative Instruments (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]
   

Net Gain (Loss) Recognized

 

(in thousands)

 

2022

   

2021

   

2020

 

Fixed interest rate hedge

  $ (664 )   $ (1,880 )   $ (1,520 )

Metals swaps

    633       418       55  

Embedded customer derivatives

    (633 )     (418 )     (55 )

Total loss

  $ (664 )   $ (1,880 )   $ (1,520 )