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Allowance for Loan Losses - Schedule of Allowance for Loan Losses on Basis of Calculation Methodology (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract            
Specifically reserved $ 1,820     $ 3,281    
Historical loss rate 1,773     1,474    
Qualitative factors 8,896     9,554    
Other 589     294    
Total 13,078 $ 13,017 $ 12,935 14,603 $ 13,693 $ 12,777
Unallocated [Member]            
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract            
Specifically reserved 0     0    
Historical loss rate 0     0    
Qualitative factors 0     0    
Other 589     294    
Total 589 989 984 294 0 545
Residential Mortgage Loans [Member]            
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract            
Total   0        
Residential Mortgage Loans [Member] | 1-4 Family First Lien Residential Mortgages [Member]            
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract            
Specifically reserved 95     80    
Historical loss rate 85     85    
Qualitative factors 717     710    
Total 897 830 872 875 975 931
Residential Mortgage Loans [Member] | Residential Construction Mortgage [Member]            
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract            
Specifically reserved 0     0    
Historical loss rate 0     0    
Qualitative factors 0     0    
Total 0   0 0 0 0
Commercial Loans [Member] | Real Estate [Member]            
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract            
Specifically reserved 44     222    
Historical loss rate 1     1    
Qualitative factors 5,477     5,897    
Total 5,522 5,298 5,308 6,120 5,721 4,776
Commercial Loans [Member] | Lines of Credit [Member]            
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract            
Specifically reserved 359     904    
Historical loss rate 37     33    
Qualitative factors 761     873    
Total 1,157 1,061 935 1,810 1,916 1,670
Commercial Loans [Member] | Other Commercial and Industrial [Member]            
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract            
Specifically reserved 1,208     1,852    
Historical loss rate 83     38    
Qualitative factors 1,325     1,558    
Total 2,616 2,737 2,762 3,448 3,016 2,992
Commercial Loans [Member] | Tax Exempt Loans [Member]            
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract            
Specifically reserved 0     0    
Historical loss rate 0     0    
Qualitative factors 4     1    
Other 0     0    
Total 4 4 3 1 1 1
Consumer Loans [Member] | Home Equity and Junior Liens [Member]            
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract            
Specifically reserved 114     223    
Historical loss rate 321     325    
Qualitative factors 315     257    
Other 0     0    
Total 750 676 774 805 827 739
Consumer Loans [Member] | Other Consumer [Member]            
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract            
Specifically reserved 0     0    
Historical loss rate 1,246     992    
Qualitative factors 297     258    
Other 0     0    
Total $ 1,543 $ 1,422 $ 1,297 $ 1,250 $ 1,237 $ 1,123