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Note 17 - Retirement Plans (Tables)
12 Months Ended
Dec. 31, 2024
Notes Tables  
Schedule of Costs of Retirement Plans [Table Text Block]
  

2024

  

2023

  

2022

 

Qualified noncontributory defined benefit retirement plan

 $1,246   1,211   1,298 

401(k) plan

  798   701   636 
Schedule of Net Benefit Costs [Table Text Block]
  

2024

  

2023

  

2022

 

Service cost

 $       

Interest cost

  72   77   54 

Amortization of unrecognized (gain) loss

        8 

Net periodic pension cost

 $72   77   62 
Schedule of Changes in Projected Benefit Obligations [Table Text Block]
  

2024

  

2023

  

2022

 

Projected benefit obligation at beginning of year

 $1,573   1,606   1,999 

Service cost

         

Interest cost

  72   77   54 

Actuarial (gain) or loss

  (72)  35   (303)

Benefits paid

  (145)  (145)  (144)

Projected benefit obligation at end of year

 $1,428   1,573   1,606 
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
  

2024

  

2023

  

2022

 

Net actuarial (gain) or loss

 $(57)  28   (246)
Defined Benefit Plan, Assumptions [Table Text Block]
  

2024

  

2023

  

2022

 

Benefit obligation:

            

Discount rate

  5.54%  4.83%  5.02%

Salary increase rate

  N/A   N/A   N/A 
             

Net periodic pension cost:

            

Discount rate

  4.83%  5.02%  2.83%

Salary increase rate

  N/A   N/A   N/A 

Amortization period in years

  17.82   18.61   19.41 
Schedule of Expected Benefit Payments [Table Text Block]

2025

  $144 

2026

   144 

2027

   143 

2028

   142 

2029

   138 
2030 - 2034   601