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Note 12 - Employee Retirement Plans (Tables)
12 Months Ended
Dec. 31, 2025
Notes Tables  
Schedule of Changes in Projected Benefit Obligations [Table Text Block]
  

December 31,

 
  

2025

  

2024

 

Change in projected benefit obligation:

        

Benefit obligation at beginning of year

 $3,539  $4,972 

Service cost

  43   63 

Interest cost

  181   229 

Participant contributions

  85   82 

Changes in actuarial assumptions

  815   (1,154)

Benefits paid

  (273)  (653)

Projected benefit obligation at end of year

 $4,390  $3,539 

Amounts recognized in the consolidated balance sheets consisted of:

        

Accrued expenses and other current liabilities

 $200  $220 

Retiree health benefit obligation

  4,190   3,319 
  $4,390  $3,539 
Schedule of Net Benefit Costs [Table Text Block]
  

2025

  

2024

  

2023

 

Components of net postretirement health benefit cost:

            

Service cost

 $43  $63  $77 

Interest cost

  181   229   266 

Amortization of net gain

  (679)  (514)  (539)

Net postretirement healthcare benefit cost

 $(455) $(222) $(196)
Defined Benefit Plan, Assumptions [Table Text Block]
  

Year Ended December 31,

 
  

2025

  

2024

  

2023

 

Discount rate

  5.3%  4.7%  5.0%

Immediate healthcare cost trend rate

  *   **   *** 

Ultimate healthcare cost trend rate

  4.5   4.5   4.5 

Assumed annual reduction in trend rate

  *   **   *** 

Participation

  60   60   60