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Off-balance-sheet Activities (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
ASU No. 2016-13    
Off-balance-sheet Activities    
Fair value amount of financial instruments with off-balance-sheet risk $ 0  
ASU No. 2016-13 | As Reported    
Off-balance-sheet Activities    
Fair value amount of financial instruments with off-balance-sheet risk 224,000  
Commercial loans unused lines of credit    
Off-balance-sheet Activities    
Fair value amount of financial instruments with off-balance-sheet risk 92,083 $ 79,718
Commitment to originate loans    
Off-balance-sheet Activities    
Fair value amount of financial instruments with off-balance-sheet risk 89,514 77,889
Consumer open end lines of credit    
Off-balance-sheet Activities    
Fair value amount of financial instruments with off-balance-sheet risk 37,371 37,600
Standby lines of credit    
Off-balance-sheet Activities    
Fair value amount of financial instruments with off-balance-sheet risk $ 136 $ 136