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Loans - Gross loans by method of evaluation and related allowance for loan losses (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Jun. 30, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Dec. 31, 2020
Loans            
Loans, individually evaluated for impairment $ 495   $ 929      
Loans, collectively evaluated for impairment 230,699   223,899      
Total loans 231,194   224,828      
Allowance for loan losses, individually evaluated for impairment 0   0      
Allowance for loan losses, collectively evaluated for impairment 2,530   2,430      
Total allowance for loan losses 2,530 $ 2,433 2,430 $ 2,426 $ 2,424 $ 2,811
Commercial            
Loans            
Loans, individually evaluated for impairment     112      
Loans, collectively evaluated for impairment 140,016   134,501      
Total loans 140,016   134,613      
Allowance for loan losses, individually evaluated for impairment 0   0      
Allowance for loan losses, collectively evaluated for impairment 1,579   1,516      
Total allowance for loan losses 1,579 1,375 1,516 1,559 1,590 1,834
Residential real estate and consumer            
Loans            
Loans, individually evaluated for impairment 495   817      
Loans, collectively evaluated for impairment 90,683   89,398      
Total loans 91,178   90,215      
Allowance for loan losses, individually evaluated for impairment 0   0      
Allowance for loan losses, collectively evaluated for impairment 951   914      
Total allowance for loan losses $ 951 $ 1,058 $ 914 $ 867 $ 834 $ 977