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Note 4 - Fair Value (Tables)
9 Months Ended
Sep. 30, 2024
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
  

Fair Value at

  

Fair Value at

 
  

September 30,

  

December 31,

 
  

2024

  

2023

 

Assets:

        

Non-qualified benefit plan assets (a)

 $10,589  $9,195 

Interest rate swaps (b)

  1,563   4,033 
         

Total Assets

 $12,152  $13,228 
         

Liabilities:

        

Long-term debt (c)

 $147,497  $189,413 

Total Liabilities

 $147,497  $189,413