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Revenue (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Debit Card [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax $ 4,063 $ 3,783 $ 3,623
Fiduciary and Trust [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax 3,110 2,622 2,707
Investment Advice [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax 447 383 364
Service Charges And Deposit Account Fees [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax $ 362 $ 345 $ 312