Loans and Allowance for Loan Losses - Past due aging analysis (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Past due aging analysis of loans
Nonaccrual	$ 4,370	$ 2,076
Loans and Leases Receivable, Gross, Total	1,890,243	1,758,020
30 - 89 Days Past Due
Past due aging analysis of loans
Loans	1,987	2,226
90 Days or More Past Due
Past due aging analysis of loans
Loans		121
Current
Past due aging analysis of loans
Loans	1,883,886	1,753,597
Commercial
Past due aging analysis of loans
Nonaccrual	2,230	1,966
Loans and Leases Receivable, Gross, Total	1,133,033	1,076,273
Commercial | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	119	168
Commercial | 90 Days or More Past Due
Past due aging analysis of loans
Loans		121
Commercial | Current
Past due aging analysis of loans
Loans	1,130,684	1,074,018
Commercial | Commercial and industrial
Past due aging analysis of loans
Nonaccrual	1,601	1,337
Loans and Leases Receivable, Gross, Total	484,426	436,761
Commercial | Commercial and industrial | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	82	168
Commercial | Commercial and industrial | 90 Days or More Past Due
Past due aging analysis of loans
Loans		121
Commercial | Commercial and industrial | Current
Past due aging analysis of loans
Loans	482,743	435,135
Commercial | Real estate construction
Past due aging analysis of loans
Loans and Leases Receivable, Gross, Total	48,870	40,619
Commercial | Real estate construction | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	37
Commercial | Real estate construction | Current
Past due aging analysis of loans
Loans	48,833	40,619
Commercial | Commercial real estate
Past due aging analysis of loans
Nonaccrual	629	629
Loans and Leases Receivable, Gross, Total	599,737	598,893
Commercial | Commercial real estate | Current
Past due aging analysis of loans
Loans	599,108	598,264
Consumer
Past due aging analysis of loans
Nonaccrual	2,140	110
Loans and Leases Receivable, Gross, Total	757,210	681,747
Consumer | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	1,868	2,058
Consumer | Current
Past due aging analysis of loans
Loans	753,202	679,579
Consumer | Residential | Real estate first mortgage
Past due aging analysis of loans
Nonaccrual	1,873	21
Loans and Leases Receivable, Gross, Total	568,571	510,716
Consumer | Residential | Real estate first mortgage | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	1,255	1,770
Consumer | Residential | Real estate first mortgage | Current
Past due aging analysis of loans
Loans	565,443	508,925
Consumer | Residential | Real estate junior lien
Past due aging analysis of loans
Nonaccrual	193	89
Loans and Leases Receivable, Gross, Total	135,255	125,668
Consumer | Residential | Real estate junior lien | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	426	167
Consumer | Residential | Real estate junior lien | Current
Past due aging analysis of loans
Loans	134,636	125,412
Consumer | Other revolving and installment
Past due aging analysis of loans
Nonaccrual	74
Loans and Leases Receivable, Gross, Total	53,384	45,363
Consumer | Other revolving and installment | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	187	121
Consumer | Other revolving and installment | Current
Past due aging analysis of loans
Loans	$ 53,123	$ 45,242