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Note 9 - Retirement Plans (Tables)
3 Months Ended
Jun. 28, 2025
Notes Tables  
Schedule of Defined Benefit Plans Disclosures [Table Text Block]
   

Three Months Ended

 
   

June 28,

   

June 29,

 
   

2025

   

2024

 

Service cost including administrative expenses

  $ 1,323     $ 1,591  

Interest cost

    2,912       2,942  

Expected return on plan assets

    (4,820 )     (4,423 )

Amortization of net loss

    -       76  

Amortization of prior service cost

    2       2  

Net periodic pension (benefit) cost

  $ (583 )   $ 188