Loans and Allowance for Loan Losses - Past due aging analysis (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Past due aging analysis of loans
Nonaccrual	$ 4,303	$ 2,076
Loans and Leases Receivable, Gross, Total	2,318,231	1,758,020
30 - 89 Days Past Due
Past due aging analysis of loans
Loans	2,421	2,226
90 Days or More Past Due
Past due aging analysis of loans
Loans	1,000	121
Current
Past due aging analysis of loans
Loans	2,310,507	1,753,597
Commercial
Past due aging analysis of loans
Nonaccrual	2,108	1,966
Loans and Leases Receivable, Gross, Total	1,472,938	1,076,273
Commercial | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	311	168
Commercial | 90 Days or More Past Due
Past due aging analysis of loans
Loans	1,000	121
Commercial | Current
Past due aging analysis of loans
Loans	1,469,519	1,074,018
Commercial | Commercial and industrial
Past due aging analysis of loans
Nonaccrual	1,479	1,337
Loans and Leases Receivable, Gross, Total	564,655	436,761
Commercial | Commercial and industrial | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	311	168
Commercial | Commercial and industrial | 90 Days or More Past Due
Past due aging analysis of loans
Loans	1,000	121
Commercial | Commercial and industrial | Current
Past due aging analysis of loans
Loans	561,865	435,135
Commercial | Real estate construction
Past due aging analysis of loans
Loans and Leases Receivable, Gross, Total	89,215	40,619
Commercial | Real estate construction | Current
Past due aging analysis of loans
Loans	89,215	40,619
Commercial | Commercial real estate
Past due aging analysis of loans
Nonaccrual	629	629
Loans and Leases Receivable, Gross, Total	819,068	598,893
Commercial | Commercial real estate | Current
Past due aging analysis of loans
Loans	818,439	598,264
Consumer
Past due aging analysis of loans
Nonaccrual	2,195	110
Loans and Leases Receivable, Gross, Total	845,293	681,747
Consumer | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	2,110	2,058
Consumer | Current
Past due aging analysis of loans
Loans	840,988	679,579
Consumer | Residential | Real estate first mortgage
Past due aging analysis of loans
Nonaccrual	1,999	21
Loans and Leases Receivable, Gross, Total	649,818	510,716
Consumer | Residential | Real estate first mortgage | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	1,923	1,770
Consumer | Residential | Real estate first mortgage | Current
Past due aging analysis of loans
Loans	645,896	508,925
Consumer | Residential | Real estate junior lien
Past due aging analysis of loans
Nonaccrual	188	89
Loans and Leases Receivable, Gross, Total	143,681	125,668
Consumer | Residential | Real estate junior lien | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	2	167
Consumer | Residential | Real estate junior lien | Current
Past due aging analysis of loans
Loans	143,491	125,412
Consumer | Other revolving and installment
Past due aging analysis of loans
Nonaccrual	8
Loans and Leases Receivable, Gross, Total	51,794	45,363
Consumer | Other revolving and installment | 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	185	121
Consumer | Other revolving and installment | Current
Past due aging analysis of loans
Loans	$ 51,601	$ 45,242