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Note 8 - Derivative Instruments (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]
  

Net Gain (Loss) Recognized

 
  

For the Three Months

Ended September 30,

  

For the Nine Months

Ended September 30,

 

(in thousands)

 

2020

  

2019

  

2020

  

2019

 

Fixed interest rate hedge

 $(459) $(57) $(1,055) $(88)

Metals swaps

  82   177   55   310 

Embedded customer derivatives

  (82)  (177)  (55)  (310)

Total loss

 $(459) $(57) $(1,055) $(88)