Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Fair Value (Tables)

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Note 10 - Fair Value (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
   

March 31, 2024

   

December 31, 2023

 
   

Carrying

   

Estimated

   

Carrying

   

Estimated

 
   

value

   

fair value

   

value

   

fair value

 

Non-qualified employee benefit plan investments

  $ 10     $ 10     $ 15     $ 15  

Long-term debt (including current portion)

    (2,056 )     (1,965 )     (1,688 )     (1,613 )