v3.26.1
Note 6 - Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
   

Asset

Balance

         
   

June 30, 2026

   

December 31, 2025

   

Input Level

 

Trading investments

  $ 37.8     $ 36.3       1