v3.26.1
Note 18 - Post-retirement Benefits (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Schedule of Net Benefit Costs [Table Text Block]
  

Three Months Ended June 30,

  

Six Months Ended June 30,

 
  

2026

  

2025

  

2026

  

2025

 

Amortization of prior service credit

 $61  $61  $122  $122 

Interest cost

  (1,967)  (1,946)  (3,979)  (3,800)

Expected return on plan assets

  2,352   2,254   4,732   4,387 

Total

 $446  $369  $875  $709