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Employee and Director Benefit Programs (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Employee and Director Benefit Programs      
Benefit obligation at beginning of period $ 5,011 $ 4,870  
Service cost 325 359 $ 359
Interest cost 63 70 70
Benefits paid (289) (288)  
Benefit obligation at end of period $ 5,110 $ 5,011 $ 4,870