v3.26.3
Note 6 - Fair Value of Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2026
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
   

September 30,
2026

   

December 31,
2025

 
                 

Carrying amount (excluding unamortized debt issuance costs)

  $ 1,286,942     $ 1,286,233  

Estimated fair value

  $ 1,240,312     $ 1,267,698