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Adoption of Accounting Standards (Details) - USD ($)
Sep. 30, 2023
Jun. 30, 2023
Jan. 01, 2023
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Dec. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Retained earnings $ 64,738,000     $ 65,486,000      
Allowance for credit losses - Loans 12,313,000 $ 12,221,000 $ 11,947,000 10,743,000 $ 10,672,000 $ 11,568,000 $ 12,398,000
Held to maturity, allowance for credit losses 32,000 $ 109,000 114,000        
Off-Balance-Sheet, credit loss liabilities 937,000   923,000 $ 746,000      
ASU 2016-13              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Retained earnings     1,200,000        
Amount of retained earnings related to loans     951,000        
Amount of retained earnings related to held to maturity debt securities     90,000        
Allowance for credit losses - Loans 1,200,000   1,200,000        
Held to maturity, allowance for credit losses 114,000   114,000        
ASU 2016-13 | Unfunded Loan Commitment              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Amount of retained earnings related to unfunded commitments     140,000        
Off-Balance-Sheet, credit loss liabilities $ 177,000   $ 177,000