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Note 4 - Fair Value (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
  

Fair Value at

  

Fair Value at

 
  

March 31,

  

December 31,

 
  

2024

  

2023

 

Assets:

        

Non-qualified benefit plan assets (a)

 $9,976  $9,195 

Interest rate swaps (b)

  4,718   4,033 
         

Total Assets

 $14,694  $13,228 
         

Liabilities:

        

Long-term debt (c)

 $189,441  $189,413 

Total Liabilities

 $189,441  $189,413