Loans (Narrative) (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reclassification from nonaccretable difference	$ 43,000	$ 25,000
Total Non-accrual Loans	7,574,000	18,222,000
Non-accrual Current Loans	$ 6,670,000	$ 6,257,000
Total TDRs | loan	1	6
Other changes, net	$ 55,000	$ (135,000)
Financing receivable post modification recorded investment	447,000	$ 2,094,000
Number of loans added to troubled debt restructuring | loan		200,000
Unpaid Contractual Principal Balance	8,681,000	$ 21,674,000
Total recorded investment	$ 8,494,000	$ 21,395,000
Performance TDR interest rate	3.62%	4.60%
Loan participations, loans sold, amount	$ 11,800,000	$ 17,400,000
Loan participations, loans purchased, amount	4,300,000	8,700,000
Net deferred costs (fees)	(1,011,000)	(1,096,000)
Loans sold for payment, service rights retained, amount	20,900,000	23,900,000
YTD Interest Income Recognized	447,000	508,000
Net loans	1,586,791,000	1,594,075,000
Accrual TDR loans	447,000	572,000
Net portfolio loans	1,586,791,000	1,594,075,000
Gross loans	1,606,219,000	1,614,595,000
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	$ 3,100,000	$ 7,600,000
Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	100.00%	100.00%
Net deferred costs (fees)	$ (133,000)	$ 1,264,000
Net portfolio loans	1,560,393,000	1,486,115,000
Gross loans	$ 1,578,943,000	1,504,275,000
Residential Rentals Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan security percentage	80.00%
U.S. SBA PPP loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net loans	$ 26,398,000	107,960,000
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan security percentage	80.00%
Total Non-accrual Loans	$ 4,890,000	16,612,000
Non-accrual Current Loans	$ 4,890,000	$ 5,184,000
Total TDRs | loan	0	2
Financing receivable post modification recorded investment	$ 0	$ 1,376,000
Unpaid Contractual Principal Balance	4,994,000	17,952,000
Total recorded investment	4,890,000	17,714,000
YTD Interest Income Recognized	254,000	361,000
Gross loans	$ 1,115,485,000	$ 1,049,147,000
Commercial real estate | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	70.66%	69.75%
Gross loans	$ 1,115,485,000	$ 1,049,147,000
Commercial real estate | Commercial Construction Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	6.50%	6.90%
Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-accrual Loans	$ 450,000	$ 794,000
Non-accrual Current Loans	$ 0	$ 459,000
Total TDRs | loan	0	2
Financing receivable post modification recorded investment	$ 0	$ 247,000
Unpaid Contractual Principal Balance	879,000	2,001,000
Total recorded investment	866,000	1,989,000
YTD Interest Income Recognized	32,000	70,000
Gross loans	$ 91,120,000	$ 133,779,000
Residential first mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	5.77%	8.89%
Gross loans	$ 91,120,000	$ 133,779,000
Residential rentals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-accrual Loans	942,000	275,000
Non-accrual Current Loans	690,000	275,000
Unpaid Contractual Principal Balance	982,000	626,000
Total recorded investment	942,000	625,000
YTD Interest Income Recognized	48,000	32,000
Gross loans	$ 195,035,000	$ 139,059,000
Residential rentals | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	12.35%	9.24%
Gross loans	$ 195,035,000	$ 139,059,000
Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 35,590,000	$ 37,520,000
Construction and land development | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	2.25%	2.49%
Gross loans	$ 35,590,000	$ 37,520,000
Home equity and second mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-accrual Loans	601,000	495,000
Non-accrual Current Loans	399,000	293,000
Unpaid Contractual Principal Balance	626,000	568,000
Total recorded investment	601,000	555,000
YTD Interest Income Recognized	14,000	15,000
Gross loans	$ 25,638,000	$ 29,129,000
Home equity and second mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	1.62%	1.94%
Gross loans	$ 25,638,000	$ 29,129,000
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 50,574,000	$ 52,921,000
Commercial loans | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	3.20%	3.52%
Gross loans	$ 50,574,000	$ 52,921,000
Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 3,002,000	$ 1,027,000
Consumer loans | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	0.19%	0.07%
Gross loans	$ 3,002,000	$ 1,027,000
Commercial equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-accrual Loans	691,000	46,000
Non-accrual Current Loans	$ 691,000	$ 46,000
Total TDRs | loan	1	2
Financing receivable post modification recorded investment	$ 447,000	$ 471,000
Unpaid Contractual Principal Balance	1,200,000	527,000
Total recorded investment	1,195,000	512,000
YTD Interest Income Recognized	99,000	30,000
Gross loans	$ 62,499,000	$ 61,693,000
Commercial equipment | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	3.96%	4.10%
Gross loans	$ 62,499,000	$ 61,693,000
U.S. SBA PPP loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	1.70%	89.39%
Total Non-accrual Loans	$ 57,000
Non-accrual Current Loans	0
Gross loans	$ 27,276,000	$ 110,320,000
Adjustable Rate Residential First Mortgage | Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	1.20%	2.20%
Gross loans	$ 18,900,000	$ 33,600,000
Financing Receivable Troubled Debt Restructuring
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDR loan principal curtailment		100,000
YTD Interest Income Recognized	$ 16,000	96,000
One Troubled Debt Restructuring Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-accrual Loans		$ 1,500,000
Total TDRs | loan	0	0
Three Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans removed from troubled debt restructuring | loan	5
Three Troubled Debt Restructuring Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total TDRs | loan	0	3
Three Troubled Debt Restructuring Loans With Reserves
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total TDRs | loan		1
Financing receivable post modification recorded investment		$ 1,300,000
Allowance for credit losses, specific reserves		$ 400,000
Seven Troubled Debt Restructuring Loans with Reserves
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total TDRs | loan		3
Financing receivable post modification recorded investment	$ 19,000
Amount of loans removed from troubled debt restructuring	1,600,000	$ 100,000
Nonaccrual Loans With No Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-accrual Loans	7,400,000	12,400,000
Interest due to debt	100,000	400,000
Nonaccrual Loans With Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-accrual Loans		5,800,000
Interest due to debt	$ 0	400,000
Minimum | Residential Rentals Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity (in years)	3 years
Minimum | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity (in years)	3 years
Minimum | Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity (in years)	10 years
Minimum | Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold limit	$ 1,000,000
Maximum | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity (in years)	20 years
Maximum | Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity (in years)	30 years
Maximum | Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity (in years)	5 years
Unrated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 127,679,000	497,734,000
Unrated | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	162,434,000
Unrated | Residential rentals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	47,605,000
Unrated | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	1,036,000
Unrated | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	12,962,000
Unrated | Commercial equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	26,585,000
Unrated | U.S. SBA PPP loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	27,276,000	110,320,000
Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,473,329,000	1,089,940,000
Pass | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,111,857,000	866,648,000
Pass | Residential rentals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	194,093,000	90,633,000
Pass | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	35,590,000	36,484,000
Pass | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	50,574,000	39,959,000
Pass | Commercial equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	62,326,000	31,091,000
Pass | U.S. SBA PPP loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	7,672,000
Special mention | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	2,417,000
Special mention | Residential rentals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	821,000
Special mention | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Special mention | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Special mention | Commercial equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	3,977,000
Special mention | U.S. SBA PPP loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-accrual Loans	$ 3,900,000
Total TDRs | loan	4
Gross loans	$ 5,211,000	19,249,000
Substandard | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,628,000	17,648,000
Substandard | Residential rentals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	942,000	0
Substandard | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Substandard | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Substandard | Commercial equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	173,000	40,000
Substandard | U.S. SBA PPP loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
31-60 Days | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	200,000	175,000
31-60 Days | Commercial real estate | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
31-60 Days | Residential first mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
31-60 Days | Residential rentals | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
31-60 Days | Construction and land development | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
31-60 Days | Home equity and second mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	200,000	167,000
31-60 Days | Commercial loans | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
31-60 Days | Consumer loans | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	8,000
31-60 Days | Commercial equipment | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
61-89 Days | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	319,000	4,000
61-89 Days | Commercial real estate | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
61-89 Days | Residential first mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	277,000	0
61-89 Days | Residential rentals | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	42,000	0
61-89 Days | Construction and land development | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
61-89 Days | Home equity and second mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
61-89 Days | Commercial loans | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
61-89 Days | Consumer loans | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
61-89 Days | Commercial equipment | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	4,000
90 or Greater Days | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	904,000	11,965,000
90 or Greater Days | Commercial real estate | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	11,428,000
90 or Greater Days | Residential first mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	450,000	335,000
90 or Greater Days | Residential rentals | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	252,000	0
90 or Greater Days | Construction and land development | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
90 or Greater Days | Home equity and second mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	202,000	202,000
90 or Greater Days | Commercial loans | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
90 or Greater Days | Consumer loans | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
90 or Greater Days | Commercial equipment | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Performing Financial Instruments | Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	90,670,000	133,444,000
Performing Financial Instruments | Home equity and second mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	25,436,000	28,927,000
Performing Financial Instruments | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,002,000	1,027,000
Performing Financial Instruments | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-accrual Loans	3,800,000
Nonperforming Financial Instruments | Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	450,000	335,000
Nonperforming Financial Instruments | Home equity and second mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	202,000	202,000
Nonperforming Financial Instruments | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
Nonperforming Financial Instruments | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-accrual Loans	100,000	3,400,000
PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reclassification from nonaccretable difference	$ 43,000	$ 25,000
Percentage status of loan in portfolio	0.05%	0.10%
Other changes, net	$ 100,000	$ (100,000)
Unpaid Contractual Principal Balance	1,500,000	2,300,000
Total recorded investment	1,100,000	2,000,000
PCI Loans | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,116,000	1,978,000
PCI Loans | Commercial real estate | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,116,000	1,572,000
PCI Loans | Residential first mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
PCI Loans | Residential rentals | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	0	0
PCI Loans | Home equity and second mortgages | Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 0	$ 406,000
County First Acquisition
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	2.63%	3.78%
Gross loans	$ 42,182,000	$ 60,977,000
County First Acquisition | Nonaccrual Loans With Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Non-accrual Loans	$ 400,000	$ 800,000
County First Acquisition | PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	0.07%	0.12%
Fair value adjustment	$ 300,000	$ 300,000
Total recorded investment	$ 1,100,000	$ 2,000,000
Percentage change on total loans	18.35%	14.95%
Gross loans	$ 1,116,000	$ 1,978,000
County First Acquisition | All Other Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	2.56%	3.66%
Fair value adjustment	$ 300,000
Percentage change on total loans	0.96%	1.25%
Net loans	$ 41,100,000	$ 59,000,000
Gross loans	$ 41,066,000	$ 58,999,000