Fair Value Of Financial Instruments (Narrative) (Details) - Significant Unobservable Inputs (Level 3) [Member] $ in Thousands	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans individually evaluated for impairment	$ 3,900	$ 1,800
OREO	193	192
Fair Value, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans individually evaluated for impairment	3,900	1,800
OREO	$ 193	$ 192
Fair Value, Nonrecurring [Member] | Estimated Selling Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans receivable, measurement input	0.10
OREO, measurement input	0.10
Fair Value, Nonrecurring [Member] | Lack of Marketability [Member] | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans receivable, measurement input	0.10
Fair Value, Nonrecurring [Member] | Lack of Marketability [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans receivable, measurement input	0.50
Fair Value, Nonrecurring [Member] | Lack of Marketability [Member] | Weighted Average [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans receivable, measurement input	0.18