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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Loans and Allowance for Loan Losses - Past due aging analysis (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Past due aging analysis of loans
Nonaccrual	$ 4,069		$ 2,076
Loans and Leases Receivable, Gross, Total	1,818,042		1,758,020
Interest income foregone on nonaccrual loans	36	$ 80
30 - 89 Days Past Due
Past due aging analysis of loans
Loans	1,963		2,226
90 Days or More Past Due
Past due aging analysis of loans
Loans	146		121
Current
Past due aging analysis of loans
Loans	1,811,864		1,753,597
Commercial
Past due aging analysis of loans
Nonaccrual	2,036		1,966
Loans and Leases Receivable, Gross, Total	1,111,211		1,076,273
Commercial \| 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	660		168
Commercial \| 90 Days or More Past Due
Past due aging analysis of loans
Loans	146		121
Commercial \| Current
Past due aging analysis of loans
Loans	1,108,369		1,074,018
Commercial \| Commercial and industrial
Past due aging analysis of loans
Nonaccrual	1,407		1,337
Loans and Leases Receivable, Gross, Total	467,449		436,761
Commercial \| Commercial and industrial \| 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	218		168
Commercial \| Commercial and industrial \| 90 Days or More Past Due
Past due aging analysis of loans
Loans	146		121
Commercial \| Commercial and industrial \| Current
Past due aging analysis of loans
Loans	465,678		435,135
Commercial \| Real estate construction
Past due aging analysis of loans
Loans and Leases Receivable, Gross, Total	41,604		40,619
Commercial \| Real estate construction \| Current
Past due aging analysis of loans
Loans	41,604		40,619
Commercial \| Commercial real estate
Past due aging analysis of loans
Nonaccrual	629		629
Loans and Leases Receivable, Gross, Total	602,158		598,893
Commercial \| Commercial real estate \| 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	442
Commercial \| Commercial real estate \| Current
Past due aging analysis of loans
Loans	601,087		598,264
Consumer
Past due aging analysis of loans
Nonaccrual	2,033		110
Loans and Leases Receivable, Gross, Total	706,831		681,747
Consumer \| 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	1,303		2,058
Consumer \| Current
Past due aging analysis of loans
Loans	703,495		679,579
Consumer \| Residential \| Real estate first mortgage
Past due aging analysis of loans
Nonaccrual	1,759		21
Loans and Leases Receivable, Gross, Total	522,489		510,716
Consumer \| Residential \| Real estate first mortgage \| 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	687		1,770
Consumer \| Residential \| Real estate first mortgage \| Current
Past due aging analysis of loans
Loans	520,043		508,925
Consumer \| Residential \| Real estate junior lien
Past due aging analysis of loans
Nonaccrual	225		89
Loans and Leases Receivable, Gross, Total	130,604		125,668
Consumer \| Residential \| Real estate junior lien \| 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	445		167
Consumer \| Residential \| Real estate junior lien \| Current
Past due aging analysis of loans
Loans	129,934		125,412
Consumer \| Other revolving and installment
Past due aging analysis of loans
Nonaccrual	49
Loans and Leases Receivable, Gross, Total	53,738		45,363
Consumer \| Other revolving and installment \| 30 - 89 Days Past Due
Past due aging analysis of loans
Loans	171		121
Consumer \| Other revolving and installment \| Current
Past due aging analysis of loans
Loans	$ 53,518		$ 45,242