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Recent Accounting Pronouncements - Impact of ASC (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Dec. 31, 2021
Investment Securities        
Allowance for credit losses on investments $ 223      
Loans        
Loans 2,486,625 $ 2,443,994    
Allowance for credit losses 35,102 31,146 $ 31,713 $ 31,572
Unallocated        
Loans        
Allowance for credit losses 901 268 457 1,180
Commercial        
Loans        
Loans 1,596,678 1,563,356    
Allowance for credit losses 24,550 23,292 22,551 22,084
Commercial | Commercial and industrial        
Loans        
Loans 553,578 583,876    
Allowance for credit losses 7,800 9,158 9,795 8,925
Commercial | Real estate construction        
Loans        
Loans 108,776 97,810    
Allowance for credit losses 4,406 1,446 810 783
Commercial | Commercial real estate        
Loans        
Loans 934,324 881,670    
Allowance for credit losses 12,344 12,688 11,946 12,376
Consumer        
Loans        
Loans 889,947 880,638    
Allowance for credit losses 9,651 7,586 8,705 8,308
Consumer | Other revolving and installment        
Loans        
Loans 39,664 50,608    
Allowance for credit losses 314 528 644 481
Real estate first mortgage | Consumer | Residential        
Loans        
Loans 698,002 679,551    
Allowance for credit losses 8,060 5,769 6,661 6,532
Real estate junior lien | Consumer | Residential        
Loans        
Loans 152,281 150,479    
Allowance for credit losses 1,277 1,289 $ 1,400 $ 1,295
Unfunded commitments        
Liabilities [Abstract]        
Off balance sheet liability, Allowance for loan losses 5,200 3,244    
Mortgage backed securities - Residential agency        
Investment Securities        
Allowance for credit losses on investments $ 106      
Accounting Standards Update 2016-13 | Unfunded commitments        
Liabilities [Abstract]        
Off balance sheet liability, Allowance for loan losses   1,900    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13        
Investment Securities        
Allowance for credit losses on investments   172    
Loans        
Allowance for credit losses on loans and investments securities   35,175    
Allowance for credit losses   35,003    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 | Unallocated        
Loans        
Allowance for credit losses   984    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 | Commercial        
Loans        
Allowance for credit losses   24,524    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 | Commercial | Commercial and industrial        
Loans        
Allowance for credit losses   8,296    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 | Commercial | Real estate construction        
Loans        
Allowance for credit losses   3,964    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 | Commercial | Commercial real estate        
Loans        
Allowance for credit losses   12,264    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 | Consumer        
Loans        
Allowance for credit losses   9,495    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 | Consumer | Other revolving and installment        
Loans        
Allowance for credit losses   424    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 | Real estate first mortgage | Consumer | Residential        
Loans        
Allowance for credit losses   7,849    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 | Real estate junior lien | Consumer | Residential        
Loans        
Allowance for credit losses   1,222    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 | Unfunded commitments        
Liabilities [Abstract]        
Off balance sheet liability, Allowance for loan losses   5,159    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 | Obligations of state and political agencies        
Investment Securities        
Allowance for credit losses on investments   110    
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 | Mortgage backed securities - Residential agency        
Investment Securities        
Allowance for credit losses on investments   62    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13        
Investment Securities        
Allowance for credit losses on investments   172    
Loans        
Allowance for credit losses on loans and investments securities   4,029    
Allowance for credit losses   3,857    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Unallocated        
Loans        
Loans   716    
Allowance for credit losses   716    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Commercial        
Loans        
Loans   1,232    
Allowance for credit losses   1,232    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Commercial | Commercial and industrial        
Loans        
Loans   (862)    
Allowance for credit losses   (862)    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Commercial | Real estate construction        
Loans        
Loans   2,518    
Allowance for credit losses   2,518    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Commercial | Commercial real estate        
Loans        
Loans   (424)    
Allowance for credit losses   (424)    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Consumer        
Loans        
Loans   1,909    
Allowance for credit losses   1,909    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Consumer | Other revolving and installment        
Loans        
Loans   (104)    
Allowance for credit losses   (104)    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Real estate first mortgage | Consumer | Residential        
Loans        
Loans   2,080    
Allowance for credit losses   2,080    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Real estate junior lien | Consumer | Residential        
Loans        
Loans   (67)    
Allowance for credit losses   (67)    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Unfunded commitments        
Liabilities [Abstract]        
Off balance sheet liability, Allowance for loan losses   1,915    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Obligations of state and political agencies        
Investment Securities        
Allowance for credit losses on investments   110    
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 | Mortgage backed securities - Residential agency        
Investment Securities        
Allowance for credit losses on investments   $ 62