Commitments and Contingent Liabilities (Narrative) (Details)	12 Months Ended
Dec. 31, 2019 USD ($)
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fixed Rate, Maturity period	3 years
Salaries provided for employment contracts	$ 1,890,000
Chief Executive Officer [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Employment contract term	3 years
Other Senior Executives [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Automatic contract renewal	1 year
Days to submit written notice of non-renewal	30 days
Corporate to elect extended contract	2 years
Home Equity Line of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off balance sheet risks, Expiration period	10 years
Other Real Estate Loan [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off balance sheet risks, Expiration period	60 days
Commercial Loan Commitments [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off balance sheet risks, Expiration period	1 year
Residential And Commercial Mortgage [Member] \| Minimum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fixed rate loan, Percentage rate	3.00%
Residential And Commercial Mortgage [Member] \| Maximum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fixed rate loan, Percentage rate	4.75%
Fixed Rate, Maturity period	10 years
Unused Lines of Credit [Member] \| Minimum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Percentage of collateral held for commitments	50.00%
Unused Lines of Credit [Member] \| Maximum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Percentage of collateral held for commitments	100.00%
Unused Lines of Credit [Member] \| Weighted Average [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Percentage of collateral held for commitments	94.00%

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of expense for salary and wage arising from service rendered by officer. Excludes allocated cost, labor-related nonsalary expense, and direct and overhead labor cost included in cost of good and service sold.

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