Loans (Narrative) (Details)	12 Months Ended
Dec. 31, 2019 USD ($) item loan contract	Dec. 31, 2018 USD ($) contract loan item	Dec. 31, 2017 USD ($) contract item property
Financing Receivable, Past Due [Line Items]
Allowance for loan losses, TDR	$ 14,000	$ 16,000	$ 18,000
Number of days past due to be considered default	90 days
Minimum prior year principal balance of commercial Real estate loans required to be reviewed annually	80.00%
Deposit liabilities reclassified as loans receivable	$ 519,000	$ 676,000
Number of contracts with payment default \| contract	0	0	0
Number of commitments to lend \| item	0	0	0
Number of loans in the process of foreclosure \| loan	0	0
Number of loans modified \| loan		2
Residential Mortgages [Member]
Financing Receivable, Past Due [Line Items]
Real estate acquired through foreclosure	$ 0	$ 0
Commercial Mortgages [Member]
Financing Receivable, Past Due [Line Items]
Number of OREO properties \| property			1
Other real estate owned			$ 5,125,000
OREO Valuation allowance			$ 725,000

Allowance for Loan and Lease Losses, Trouble Debt Restructuring

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- Definition

Loans And Leases Receivable, Number Of Commitments To Lend

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- Definition

Represents the minimum prior year principal balance of commercial real estate loans that is required to be reviewed annually.

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No definition available.

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- Definition

The number of days that a loan is past due to be considered in default under the modified terms of TDR.

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No definition available.

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- Definition

Number of Loans In Process Of Foreclosure

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No definition available.

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- Definition

Number Of Other Real Estate Owned

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No definition available.

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- Definition

Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable.

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Number of financing receivables that have been modified by troubled debt restructurings.

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Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

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- Definition

Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

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- Definition

The valuation allowance loss on real estate owned or any impairment losses taken against real estate investments held for use or resale.

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