Loans (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) tDR_Loan loan	Dec. 31, 2021 USD ($) loan tDR_Loan	Sep. 30, 2022 USD ($)	Jan. 01, 2022 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Deferred loan fee and premiums, net	$ (3,000)	$ (100)
Total deferred fee and premiums	4,300	4,000
Deferred loan fees and premiums include net deferred fees paid by customers	7,300	4,100
Net deferred costs (fees)		(1,011)
Total	1,821,407	1,606,219
Loans sold for payment, service rights retained, amount	$ 19,500	$ 20,900
Total TDRs | tDR_Loan	2	1
Nonaccrual with no allowance for credit losses	$ 6,006
Total Non-accrual Loans	6,115	$ 7,631
Financing receivable post modification recorded investment	$ 457	447
YTD Interest Income Recognized		$ 447
Performance TDR interest rate	3.62%	3.62%
Unpaid Contractual Principal Balance		$ 8,681
Total recorded investment		8,494
PCI Loans, accretion interest		100
Reclassification from nonaccretable difference		43
Loan participations, loans sold, amount	$ 21,000	11,800
Loan participations, loans purchased, amount	22,900	4,300
Related Party Loans | Charitable And Community Organizations to Which Bank Executive Offices and Directors Volunteer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable, related parties	4,000	3,100
Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net deferred costs (fees)		(133)		$ 0
Total	$ 1,821,407	1,578,943		1,578,810
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		$ 1,115,485
Total TDRs | tDR_Loan	0	0
Nonaccrual with no allowance for credit losses	$ 4,521
Total Non-accrual Loans	4,602	$ 4,890
Financing receivable post modification recorded investment	$ 0	0
YTD Interest Income Recognized		254
Unpaid Contractual Principal Balance		4,994
Total recorded investment		$ 4,890
Commercial real estate | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	67.69%	70.66%
Total	$ 1,232,826	$ 1,115,485		1,113,793
Commercial real estate | Commercial Construction Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	6.90%	6.50%
Percent of appraised value or sales price	80.00%
Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		$ 91,120
Total Non-accrual Loans		450
YTD Interest Income Recognized		32
Unpaid Contractual Principal Balance		879
Total recorded investment		$ 866
Residential first mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	4.39%	5.77%
Total	$ 79,872	$ 91,120		$ 92,710
Adjustable Rate Residential First Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 1,820,000	$ 1,610,000
Adjustable Rate Residential First Mortgage | Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	0.70%	1.20%
Total	$ 13,100	$ 18,900
Financing Receivable Troubled Debt Restructuring
Accounts, Notes, Loans and Financing Receivable [Line Items]
YTD Interest Income Recognized	$ 16	$ 16
Troubled Debt Restructuring Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total TDRs | loan	1	0
Three Troubled Debt Restructuring Loans With Reserves
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total TDRs | loan	1
Financing receivable, specific reserves	$ 28	$ 400
Seven Troubled Debt Restructuring Loans with Reserves
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total TDRs | loan		5
Financing receivable post modification recorded investment	18
Amount of loans removed from troubled debt restructuring		$ 1,600
U.S. SBA PPP loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net deferred costs (fees)		200	$ 9
Deferred loan fees and premiums included in deferred fees paid by SBA		200	9
Offset by net deferred premiums paid to purchase loans		18	$ 1
Nonaccrual Loans With No Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual with no allowance for credit losses	6,000	7,400
Interest due to debt	22	100
Nonaccrual Loans With Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest due to debt	1	1
Total Non-accrual Loans	$ 100	300
Minimum | Residential Rentals Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity period (in years)	3 years
Minimum | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity period (in years)	3 years
Minimum | Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity period (in years)	10 years
Maximum | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity period (in years)	20 years
Maximum | Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity period (in years)	30 years
Maximum | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity period (in years)	5 years
Unrated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		127,679
Unrated | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		0
Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		1,473,329
Pass | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 1,224,033	1,111,857
Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		0
Special mention | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,191	0
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		5,211
Substandard | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,602	3,628
31-60 DPD | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	232	200
31-60 DPD | Commercial real estate | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	147	0
31-60 DPD | Residential first mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
61-89 DPD** | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 372	319
Total TDRs | loan	2
Total Non-accrual Loans	$ 300
61-89 DPD** | Commercial real estate | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
61-89 DPD** | Residential first mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	277
90 DPD Still Accruing and Not Accruing | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	50	904
Total Non-accrual Loans	388
90 DPD Still Accruing and Not Accruing | Commercial real estate | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Total Non-accrual Loans	0
90 DPD Still Accruing and Not Accruing | Residential first mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	450
Total Non-accrual Loans	0
Performing Financial Instruments | Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	79,872	90,670
Nonperforming Financial Instruments | Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	450
PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	1,500
Total recorded investment		1,100
Reclassification from nonaccretable difference		43
PCI Loans | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		1,116
Total Non-accrual Loans	5,460
PCI Loans | Commercial real estate | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		$ 1,116
Total Non-accrual Loans	4,602
PCI Loans | Residential first mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-accrual Loans	$ 0
County First Acquisition
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio		2.63%
Total		$ 42,182
County First Acquisition | PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio		0.07%
Total		$ 1,116
Total recorded investment		1,100
New acquisition accounting for fair market value adjustment		$ 300
Net acquisition accounting fair market value adjustment, mark		14.95%
County First Acquisition | All Other Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio		2.56%
Total		$ 41,066
New acquisition accounting for fair market value adjustment		$ 800
Net acquisition accounting fair market value adjustment, mark		1.25%