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Securities (Amortized Cost And Fair Value Of Available-For-Sale Securities Portfolio) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost $ 8,579 $ 8,139
Gross Unrealized Gains 122 36
Gross Unrealized Losses 1
Available-for-sale Securities Total, Fair Value 8,701 8,174
U.S. Treasury [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 8,517 7,986
Gross Unrealized Gains 119 32
Gross Unrealized Losses 1
Available-for-sale Securities Total, Fair Value 8,636 8,017
Mortgage-Backed Securities - Residential [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 62 126
Gross Unrealized Gains 3 4
Gross Unrealized Losses  
Available-for-sale Securities Total, Fair Value $ 65 130
Collateralized Mortgage Obligations [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost   27
Available-for-sale Securities Total, Fair Value   $ 27