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Employee Benefits (Details - Reconciliation) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Retirement Benefits [Abstract]      
Projected benefit obligation, beginning of year $ 15,477 $ 15,952  
Interest cost 695 753 $ 579
Assumption changes (564) (3)  
Actuarial (gain) loss (223) (271)  
Settlements 0 0  
Benefits paid (1,113) (954)  
Projected benefit obligation, end of year 14,272 15,477 15,952
Fair value of plan assets, beginning of year 20,048 18,768  
Return on assets 2,967 2,347  
Employer contribution 0 0  
Expenses (122) (113)  
Settlements 0 0  
Benefits paid (1,113) (954)  
Fair value of plan assets, end of year 21,780 20,048 $ 18,768
Funded Status at end of year $ 7,508 $ 4,571