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Securities (Amortized Cost And Fair Value Of Available-For-Sale Securities Portfolio) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost $ 16,562 $ 8,579
Gross Unrealized Gains 32 122
Gross Unrealized Losses 247  
Fair Value 16,347 8,701
Corporate Debt [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 9,976  
Gross Unrealized Losses 226  
Fair Value 9,750  
U.S. Treasury [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 6,551 8,517
Gross Unrealized Gains 31 119
Gross Unrealized Losses 21  
Fair Value 6,561 8,636
Issued by U.S. government-sponsored entities and agencies [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 35 62
Gross Unrealized Gains 1 3
Gross Unrealized Losses  
Fair Value $ 36 $ 65