Loans (Schedule Of Loans Outstanding) (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,018,168,000	$ 1,009,704,000
Less: Allowance for loan losses	(15,366,000)	(16,789,000)
Net Loans	1,002,802,000	992,915,000
Net unamortized deferred loan (fees) costs	853,000	8,000
Paycheck Protection Program (PPP) loans (included in Commercial loans above)	21,742,000	52,290,000
Unamortized deferred PPP loan fees (included in Net unamortized deferred loan fees above)	(821,000)	(1,343,000)
Loans pledged as collateral for borrowings and commitments from: FHLB	733,661,000	840,850,000
Loans pledged as collateral for borrowings and commitments from :Federal Reserve Bank	51,653,000	50,605,000
Total	785,314,000	891,455,000
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	204,501,000	202,584,000
Residential Real Estate - Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	22,078,000	16,309,000
Less: Allowance for loan losses	(367,000)	(294,000)
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	527,092,000	503,977,000
Less: Allowance for loan losses	(8,688,000)	(9,163,000)
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	257,693,000	281,257,000
Less: Allowance for loan losses	(4,886,000)	(5,679,000)
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	784,785,000	785,234,000
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	6,804,000	5,577,000
Less: Allowance for loan losses	(137,000)	(97,000)
PPP, Two-year Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Paycheck Protection Program (PPP) loans (included in Commercial loans above)	31,000	5,378,000
Unamortized deferred PPP loan fees (included in Net unamortized deferred loan fees above)		(165,000)
PPP, Five-year Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Paycheck Protection Program (PPP) loans (included in Commercial loans above)	21,711,000	46,912,000
Unamortized deferred PPP loan fees (included in Net unamortized deferred loan fees above)	(821,000)	(1,178,000)
Consumer First Liens [Member] \| Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	75,649,000	77,373,000
Consumer Junior Liens And Lines Of Credit [Member] \| Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	65,279,000	60,935,000
Consumer [Member] \| Residential Real Estate - Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	8,195,000	6,751,000
Commercial First Lien [Member] \| Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	58,630,000	59,851,000
Commercial Junior Liens And Lines Of Credit [Member] \| Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	4,943,000	4,425,000
Commercial [Member] \| Residential Real Estate - Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	13,883,000	9,558,000
First Liens [Member] \| Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	134,279,000	137,224,000
Less: Allowance for loan losses	(492,000)	(555,000)
Junior Lines And Lines Of Credit [Member] \| Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 70,222,000	$ 65,360,000

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Amount, after accumulated amortization, of debt discount (premium).

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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