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Investment Securities (Schedule of Fair Value and Unrealized Loss on Debt Security Investments in a Continuous Unrealized Loss Position) (Details)
$ in Thousands
Mar. 31, 2021
USD ($)
security
Dec. 31, 2020
USD ($)
security
Schedule of Investments [Line Items]    
Available-for-sale securities, Less than 12 Months: Number of Securities | security 1 2
Available-for-sale securities, Less than 12 Months: Fair Value $ 998 $ 3,497
Available-for-sale securities, Less than 12 Months: Unrealized Losses $ 2 $ 4
Available-for-sale securities, 12 Months or More: Number of Securities | security 0 0
Available-for-sale securities, Total: Number of Securities | security 1 2
Available-for-sale securities, Total: Fair Value $ 998 $ 3,497
Available-for-sale securities, Total: Unrealized Losses $ 2 $ 4
Held-to-maturity securities, Less than 12 Months: Number of Securities | security 27 11
Held-to-maturity securities, Less than 12 Months: Fair Value $ 24,473 $ 6,586
Held-to-maturity securities, Less than 12 Months: Unrealized Losses $ 559 $ 22
Held-to-maturity securities, 12 Months or More: Number of Securities | security 0 0
Held-to-maturity securities, Total: Number of Securities | security 27 11
Held-to-maturity securities, Total: Fair Value $ 24,473 $ 6,586
Held-to-maturity securities, Total: Unrealized Losses $ 559 $ 22
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Number of Securities | security 28 13
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Fair Value $ 25,471 $ 10,083
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Unrealized Losses $ 561 $ 26
Available-for-sale securities and Held-to-maturity securities,, 12 Months or More: Number of Securities | security 0 0
Available-for-sale securities and Held-to-maturity securities, Total: Number of Securities | security 28 13
Available-for-sale securities and Held-to-maturity securities, Total: Fair Value $ 25,471 $ 10,083
Available-for-sale securities and Held-to-maturity securities, Total: Unrealized Losses $ 561 $ 26
U.S. Treasury and U.S. government agencies [Member]    
Schedule of Investments [Line Items]    
Held-to-maturity securities, Less than 12 Months: Number of Securities | security 7  
Held-to-maturity securities, Less than 12 Months: Fair Value $ 11,570  
Held-to-maturity securities, Less than 12 Months: Unrealized Losses $ 420  
Held-to-maturity securities, 12 Months or More: Number of Securities | security 0  
Held-to-maturity securities, Total: Number of Securities | security 7  
Held-to-maturity securities, Total: Fair Value $ 11,570  
Held-to-maturity securities, Total: Unrealized Losses $ 420  
Corporate debt securities [Member]    
Schedule of Investments [Line Items]    
Available-for-sale securities, Less than 12 Months: Number of Securities | security 1 2
Available-for-sale securities, Less than 12 Months: Fair Value $ 998 $ 3,497
Available-for-sale securities, Less than 12 Months: Unrealized Losses $ 2 $ 4
Available-for-sale securities, 12 Months or More: Number of Securities | security 0 0
Available-for-sale securities, Total: Number of Securities | security 1 2
Available-for-sale securities, Total: Fair Value $ 998 $ 3,497
Available-for-sale securities, Total: Unrealized Losses $ 2 $ 4
Held-to-maturity securities, Less than 12 Months: Number of Securities | security 4 1
Held-to-maturity securities, Less than 12 Months: Fair Value $ 4,916 $ 449
Held-to-maturity securities, Less than 12 Months: Unrealized Losses $ 83 $ 1
Held-to-maturity securities, 12 Months or More: Number of Securities | security 0 0
Held-to-maturity securities, Total: Number of Securities | security 4 1
Held-to-maturity securities, Total: Fair Value $ 4,916 $ 449
Held-to-maturity securities, Total: Unrealized Losses $ 83 $ 1
Mortgage-backed U.S. Government Agencies [Member]    
Schedule of Investments [Line Items]    
Held-to-maturity securities, Less than 12 Months: Number of Securities | security 3 8
Held-to-maturity securities, Less than 12 Months: Fair Value $ 1,835 $ 5,336
Held-to-maturity securities, Less than 12 Months: Unrealized Losses $ 3 $ 15
Held-to-maturity securities, 12 Months or More: Number of Securities | security 0 0
Held-to-maturity securities, Total: Number of Securities | security 3 8
Held-to-maturity securities, Total: Fair Value $ 1,835 $ 5,336
Held-to-maturity securities, Total: Unrealized Losses $ 3 $ 15
State and political subdivision obligations [Member]    
Schedule of Investments [Line Items]    
Held-to-maturity securities, Less than 12 Months: Number of Securities | security 13 2
Held-to-maturity securities, Less than 12 Months: Fair Value $ 6,152 $ 801
Held-to-maturity securities, Less than 12 Months: Unrealized Losses $ 53 $ 6
Held-to-maturity securities, 12 Months or More: Number of Securities | security 0 0
Held-to-maturity securities, Total: Number of Securities | security 13 2
Held-to-maturity securities, Total: Fair Value $ 6,152 $ 801
Held-to-maturity securities, Total: Unrealized Losses $ 53 $ 6