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Note 9 - Income Taxes (Tables)
9 Months Ended
Sep. 30, 2025
Notes Tables  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
  

Three months ended

  

Nine months ended

 
  

September 30,

  

September 30,

 
  

2025

  

2024

  

2025

  

2024

 

Effective tax rate

  20.0%  46.6%  20.6%  26.6%