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Loan Servicing - Activity for Loan Servicing Rights (Details) - Loan servicing rights - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Activity for Loan Servicing Rights      
Balance, beginning of year $ 549 $ 655 $ 531
Additions 126 124 384
Amortization (260) (230) (260)
Balance, end of year $ 415 $ 549 $ 655