Fair Value Measurements And Fair Values Of Financial Instruments (Schedule Of Assets Measured At Fair Value On Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 159,675	$ 149,593
Recurring [Member] | U.S. Treasury Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	9,953	19,003
Recurring [Member] | U.S. Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	14,923	15,063
Recurring [Member] | U.S. Agency Mortgage-Backed, Residential [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	108,155	74,555
Recurring [Member] | State And Municipal [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	26,644	40,972
(Level 1) Quoted Prices In Active Markets For Identical Assets [Member] | Recurring [Member] | U.S. Treasury Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	9,953	19,003
(Level 1) Quoted Prices In Active Markets For Identical Assets [Member] | Recurring [Member] | U.S. Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	0	0
(Level 1) Quoted Prices In Active Markets For Identical Assets [Member] | Recurring [Member] | U.S. Agency Mortgage-Backed, Residential [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	0	0
(Level 1) Quoted Prices In Active Markets For Identical Assets [Member] | Recurring [Member] | State And Municipal [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	0	0
(Level 2) Significant Other Observable Inputs [Member] | Recurring [Member] | U.S. Treasury Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	0	0
(Level 2) Significant Other Observable Inputs [Member] | Recurring [Member] | U.S. Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	14,923	15,063
(Level 2) Significant Other Observable Inputs [Member] | Recurring [Member] | U.S. Agency Mortgage-Backed, Residential [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	108,155	74,555
(Level 2) Significant Other Observable Inputs [Member] | Recurring [Member] | State And Municipal [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	26,644	40,972
(Level 3) Significant Other Unobservable Inputs [Member] | Recurring [Member] | U.S. Treasury Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	0	0
(Level 3) Significant Other Unobservable Inputs [Member] | Recurring [Member] | U.S. Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	0	0
(Level 3) Significant Other Unobservable Inputs [Member] | Recurring [Member] | U.S. Agency Mortgage-Backed, Residential [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	0	0
(Level 3) Significant Other Unobservable Inputs [Member] | Recurring [Member] | State And Municipal [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 0	$ 0