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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
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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

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