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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, 2020 USD ($) security | Dec. 31, 2019 USD ($) security
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Schedule of Investments [Line Items] |  |
Available-for-sale securities, Less than 12 Months: Number of Securities | security | 4 | 5
Available-for-sale securities, Less than 12 Months: Fair Value | $ 9,428 | $ 6,295
Available-for-sale securities, Less than 12 Months: Unrealized Losses | $ 20 | $ 28
Available-for-sale securities, 12 Months or More: Number of Securities | security | 1 | 21
Available-for-sale securities, 12 Months or More: Fair Value | $ 200 | $ 22,585
Available-for-sale securities, 12 Months or More: Unrealized Losses | $ 2 | $ 155
Available-for-sale securities, Total: Number of Securities | security | 5 | 26
Available-for-sale securities, Total: Fair Value | $ 9,628 | $ 28,880
Available-for-sale securities, Total: Unrealized Losses | $ 22 | $ 183
Held-to-maturity securities, Less than 12 Months: Number of Securities | security | 14 | 27
Held-to-maturity securities, Less than 12 Months: Fair Value | $ 12,799 | $ 38,852
Held-to-maturity securities, Less than 12 Months: Unrealized Losses | $ 114 | $ 267
Held-to-maturity securities, 12 Months or More: Number of Securities | security | 2 | 14
Held-to-maturity securities, 12 Months or More: Fair Value | $ 1,358 | $ 14,049
Held-to-maturity securities, 12 Months or More: Unrealized Losses | $ 6 | $ 68
Held-to-maturity securities, Total: Number of Securities | security | 16 | 41
Held-to-maturity securities, Total: Fair Value | $ 14,157 | $ 52,901
Held-to-maturity securities, Total: Unrealized Losses | $ 120 | $ 335
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Number of Securities | security | 18 | 32
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Fair Value | $ 22,227 | $ 45,147
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Unrealized Losses | $ 134 | $ 295
Available-for-sale securities and Held-to-maturity securities,, 12 Months or More: Number of Securities | security | 3 | 35
Available-for-sale securities and Held-to-maturity securities, 12 Months or More: Fair Value | $ 1,558 | $ 36,634
Available-for-sale securities and Held-to-maturity securities, 12 Months or More: Unrealized Losses | $ 8 | $ 223
Available-for-sale securities and Held-to-maturity securities, Total: Number of Securities | security | 21 | 67
Available-for-sale securities and Held-to-maturity securities, Total: Fair Value | $ 23,785 | $ 81,781
Available-for-sale securities and Held-to-maturity securities, Total: Unrealized Losses | $ 142 | $ 518
U.S. Government Agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale securities, Less than 12 Months: Number of Securities | security |  | 4
Available-for-sale securities, Less than 12 Months: Fair Value |  | $ 4,652
Available-for-sale securities, Less than 12 Months: Unrealized Losses |  | $ 24
Available-for-sale securities, 12 Months or More: Number of Securities | security |  | 7
Available-for-sale securities, 12 Months or More: Fair Value |  | $ 11,982
Available-for-sale securities, 12 Months or More: Unrealized Losses |  | $ 46
Available-for-sale securities, Total: Number of Securities | security |  | 11
Available-for-sale securities, Total: Fair Value |  | $ 16,634
Available-for-sale securities, Total: Unrealized Losses |  | $ 70
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 | 4 | 18
Held-to-maturity securities, Less than 12 Months: Fair Value | $ 5,507 | $ 29,024
Held-to-maturity securities, Less than 12 Months: Unrealized Losses | $ 18 | $ 219
Held-to-maturity securities, 12 Months or More: Number of Securities | security | 0 | 1
Held-to-maturity securities, 12 Months or More: Fair Value |  | $ 2,999
Held-to-maturity securities, 12 Months or More: Unrealized Losses |  | $ 1
Held-to-maturity securities, Total: Number of Securities | security | 4 | 19
Held-to-maturity securities, Total: Fair Value | $ 5,507 | $ 32,023
Held-to-maturity securities, Total: Unrealized Losses | $ 18 | $ 220
Mortgage-backed U.S. Government Agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale securities, Less than 12 Months: Number of Securities | security | 1 | 1
Available-for-sale securities, Less than 12 Months: Fair Value | $ 2,573 | $ 1,643
Available-for-sale securities, Less than 12 Months: Unrealized Losses | $ 13 | $ 4
Available-for-sale securities, 12 Months or More: Number of Securities | security | 1 | 14
Available-for-sale securities, 12 Months or More: Fair Value | $ 200 | $ 10,603
Available-for-sale securities, 12 Months or More: Unrealized Losses | $ 2 | $ 109
Available-for-sale securities, Total: Number of Securities | security | 2 | 15
Available-for-sale securities, Total: Fair Value | $ 2,773 | $ 12,246
Available-for-sale securities, Total: Unrealized Losses | $ 15 | $ 113
Held-to-maturity securities, Less than 12 Months: Number of Securities | security | 2 | 6
Held-to-maturity securities, Less than 12 Months: Fair Value | $ 1,960 | $ 8,445
Held-to-maturity securities, Less than 12 Months: Unrealized Losses | $ 18 | $ 35
Held-to-maturity securities, 12 Months or More: Number of Securities | security | 2 | 13
Held-to-maturity securities, 12 Months or More: Fair Value | $ 1,358 | $ 11,050
Held-to-maturity securities, 12 Months or More: Unrealized Losses | $ 6 | $ 67
Held-to-maturity securities, Total: Number of Securities | security | 4 | 19
Held-to-maturity securities, Total: Fair Value | $ 3,318 | $ 19,495
Held-to-maturity securities, Total: Unrealized Losses | $ 24 | $ 102
State and political subdivision obligations [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale securities, Less than 12 Months: Number of Securities | security | 1 |
Available-for-sale securities, Less than 12 Months: Fair Value | $ 2,962 |
Available-for-sale securities, Less than 12 Months: Unrealized Losses | $ 1 |
Available-for-sale securities, 12 Months or More: Number of Securities | security | 0 |
Available-for-sale securities, Total: Number of Securities | security | 1 |
Available-for-sale securities, Total: Fair Value | $ 2,962 |
Available-for-sale securities, Total: Unrealized Losses | $ 1 |
Held-to-maturity securities, Less than 12 Months: Number of Securities | security | 8 | 3
Held-to-maturity securities, Less than 12 Months: Fair Value | $ 5,332 | $ 1,383
Held-to-maturity securities, Less than 12 Months: Unrealized Losses | $ 78 | $ 13
Held-to-maturity securities, 12 Months or More: Number of Securities | security | 0 | 0
Held-to-maturity securities, Total: Number of Securities | security | 8 | 3
Held-to-maturity securities, Total: Fair Value | $ 5,332 | $ 1,383
Held-to-maturity securities, Total: Unrealized Losses | $ 78 | $ 13
Corporate debt securities [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale securities, Less than 12 Months: Number of Securities | security | 2 |
Available-for-sale securities, Less than 12 Months: Fair Value | $ 3,893 |
Available-for-sale securities, Less than 12 Months: Unrealized Losses | $ 6 |
Available-for-sale securities, 12 Months or More: Number of Securities | security | 0 |
Available-for-sale securities, Total: Number of Securities | security | 2 |
Available-for-sale securities, Total: Fair Value | $ 3,893 |
Available-for-sale securities, Total: Unrealized Losses | $ 6 |

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