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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
Sep. 30, 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 3 2
Available-for-sale securities, Less than 12 Months: Fair Value $ 2,982 $ 3,497
Available-for-sale securities, Less than 12 Months: Unrealized Losses $ 18 $ 4
Available-for-sale securities, 12 Months or More: Number of Securities | security 0 0
Available-for-sale securities, Total: Number of Securities | security 3 2
Available-for-sale securities, Total: Fair Value $ 2,982 $ 3,497
Available-for-sale securities, Total: Unrealized Losses $ 18 $ 4
Held-to-maturity securities, Less than 12 Months: Number of Securities | security 46 11
Held-to-maturity securities, Less than 12 Months: Fair Value $ 47,937 $ 6,586
Held-to-maturity securities, Less than 12 Months: Unrealized Losses $ 444 $ 22
Held-to-maturity securities, 12 Months or More: Number of Securities | security 1 0
Held-to-maturity securities, 12 Months or More: Fair Value $ 250  
Held-to-maturity securities, 12 Months or More: Unrealized Losses $ 7  
Held-to-maturity securities, Total: Number of Securities | security 47 11
Held-to-maturity securities, Total: Fair Value $ 48,187 $ 6,586
Held-to-maturity securities, Total: Unrealized Losses $ 451 $ 22
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Number of Securities | security 49 13
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Fair Value $ 50,919 $ 10,083
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Unrealized Losses $ 462 $ 26
Available-for-sale securities and Held-to-maturity securities,, 12 Months or More: Number of Securities | security 1 0
Available-for-sale securities and Held-to-maturity securities, 12 Months or More: Fair Value $ 250  
Available-for-sale securities and Held-to-maturity securities, 12 Months or More: Unrealized Losses $ 7  
Available-for-sale securities and Held-to-maturity securities, Total: Number of Securities | security 50 13
Available-for-sale securities and Held-to-maturity securities, Total: Fair Value $ 51,169 $ 10,083
Available-for-sale securities and Held-to-maturity securities, Total: Unrealized Losses $ 469 $ 26
Corporate debt securities [Member]    
Schedule of Investments [Line Items]    
Available-for-sale securities, Less than 12 Months: Number of Securities | security 3 2
Available-for-sale securities, Less than 12 Months: Fair Value $ 2,982 $ 3,497
Available-for-sale securities, Less than 12 Months: Unrealized Losses $ 18 $ 4
Available-for-sale securities, 12 Months or More: Number of Securities | security 0 0
Available-for-sale securities, Total: Number of Securities | security 3 2
Available-for-sale securities, Total: Fair Value $ 2,982 $ 3,497
Available-for-sale securities, Total: Unrealized Losses $ 18 $ 4
Held-to-maturity securities, Less than 12 Months: Number of Securities | security 5 1
Held-to-maturity securities, Less than 12 Months: Fair Value $ 5,924 $ 449
Held-to-maturity securities, Less than 12 Months: Unrealized Losses $ 75 $ 1
Held-to-maturity securities, 12 Months or More: Number of Securities | security 0 0
Held-to-maturity securities, Total: Number of Securities | security 5 1
Held-to-maturity securities, Total: Fair Value $ 5,924 $ 449
Held-to-maturity securities, Total: Unrealized Losses $ 75 $ 1
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 25  
Held-to-maturity securities, Less than 12 Months: Fair Value $ 37,598  
Held-to-maturity securities, Less than 12 Months: Unrealized Losses $ 334  
Held-to-maturity securities, 12 Months or More: Number of Securities | security 0  
Held-to-maturity securities, Total: Number of Securities | security 25  
Held-to-maturity securities, Total: Fair Value $ 37,598  
Held-to-maturity securities, Total: Unrealized Losses $ 334  
Mortgage-backed U.S. Government Agencies [Member]    
Schedule of Investments [Line Items]    
Held-to-maturity securities, Less than 12 Months: Number of Securities | security 2 8
Held-to-maturity securities, Less than 12 Months: Fair Value $ 566 $ 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 2 8
Held-to-maturity securities, Total: Fair Value $ 566 $ 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 14 2
Held-to-maturity securities, Less than 12 Months: Fair Value $ 3,849 $ 801
Held-to-maturity securities, Less than 12 Months: Unrealized Losses $ 32 $ 6
Held-to-maturity securities, 12 Months or More: Number of Securities | security 1 0
Held-to-maturity securities, 12 Months or More: Fair Value $ 250  
Held-to-maturity securities, 12 Months or More: Unrealized Losses $ 7  
Held-to-maturity securities, Total: Number of Securities | security 15 2
Held-to-maturity securities, Total: Fair Value $ 4,099 $ 801
Held-to-maturity securities, Total: Unrealized Losses $ 39 $ 6