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Investment Securities (Schedule of Fair Value and Unrealized Loss on Investments in a Continuous Unrealized Loss Position) (Details) $ in Thousands | Dec. 31, 2019 USD ($) security | Dec. 31, 2018 USD ($) security
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Schedule of Investments [Line Items] |  |
Available for sale securities, Less than 12 Months: Number of Securities | security | 5 | 16
Available for sale securities, Less than 12 Months: Fair Value | $ 6,295 | $ 20,487
Available for sale securities, Less than 12 Months: Unrealized Losses | $ 28 | $ 190
Available for sale securities, 12 Months or More: Number of Securities | security | 21 | 91
Available for sale securities, 12 Months or More: Fair Value | $ 22,585 | $ 84,999
Available for sale securities, 12 Months or More: Unrealized Losses | $ 155 | $ 3,935
Available for sale securities, Total: Number of Securities | security | 26 | 107
Available for sale securities, Total: Fair Value | $ 28,880 | $ 105,486
Available for sale securities, Total: Unrealized Losses | $ 183 | $ 4,125
Held to maturity securities, Less than 12 Months: Number of Securities | security | 27 | 38
Held to maturity securities, Less than 12 Months: Fair Value | $ 38,852 | $ 31,000
Held to maturity securities, Less than 12 Months: Unrealized Losses | $ 267 | $ 210
Held to maturity securities, 12 Months or More: Number of Securities | security | 14 | 115
Held to maturity securities, 12 Months or More: Fair Value | $ 14,049 | $ 80,743
Held to maturity securities, 12 Months or More: Unrealized Losses | $ 68 | $ 2,095
Held to maturity securities, Total: Number of Securities | security | 41 | 153
Held to maturity securities, Total: Fair Value | $ 52,901 | $ 111,743
Held to maturity securities, Total: Unrealized Losses | $ 335 | $ 2,305
Available for sale securities and Held to maturity securities, Less than 12 Months: Number of Securities | security | 32 | 54
Available for sale securities and Held to maturity securities, Less than 12 Months: Fair Value | $ 45,147 | $ 51,487
Available for sale securities and Held to maturity securities, Less than 12 Months: Unrealized Losses | $ 295 | $ 400
Available for sale securities and Held to maturity securities,, 12 Months or More: Number of Securities | security | 35 | 206
Available for sale securities and Held to maturity securities, 12 Months or More: Fair Value | $ 36,634 | $ 165,742
Available for sale securities and Held to maturity securities, 12 Months or More: Unrealized Losses | $ 223 | $ 6,030
Available for sale securities and Held to maturity securities, Total: Number of Securities | security | 67 | 260
Available for sale securities and Held to maturity securities, Total: Fair Value | $ 81,781 | $ 217,229
Available for sale securities and Held to maturity securities, Total: Unrealized Losses | $ 518 | $ 6,430
U.S. Government Agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Available for sale securities, Less than 12 Months: Number of Securities | security | 4 | 0
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 | 21
Available for sale securities, 12 Months or More: Fair Value | $ 11,982 | $ 38,386
Available for sale securities, 12 Months or More: Unrealized Losses | $ 46 | $ 1,708
Available for sale securities, Total: Number of Securities | security | 11 | 21
Available for sale securities, Total: Fair Value | $ 16,634 | $ 38,386
Available for sale securities, Total: Unrealized Losses | $ 70 | $ 1,708
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 | 18 | 1
Held to maturity securities, Less than 12 Months: Fair Value | $ 29,024 | $ 1,985
Held to maturity securities, Less than 12 Months: Unrealized Losses | $ 219 | $ 10
Held to maturity securities, 12 Months or More: Number of Securities | security | 1 | 3
Held to maturity securities, 12 Months or More: Fair Value | $ 2,999 | $ 8,852
Held to maturity securities, 12 Months or More: Unrealized Losses | $ 1 | $ 133
Held to maturity securities, Total: Number of Securities | security | 19 | 4
Held to maturity securities, Total: Fair Value | $ 32,023 | $ 10,837
Held to maturity securities, Total: Unrealized Losses | $ 220 | $ 143
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 | 11
Available for sale securities, Less than 12 Months: Fair Value | $ 1,643 | $ 16,740
Available for sale securities, Less than 12 Months: Unrealized Losses | $ 4 | $ 163
Available for sale securities, 12 Months or More: Number of Securities | security | 14 | 19
Available for sale securities, 12 Months or More: Fair Value | $ 10,603 | $ 22,093
Available for sale securities, 12 Months or More: Unrealized Losses | $ 109 | $ 853
Available for sale securities, Total: Number of Securities | security | 15 | 30
Available for sale securities, Total: Fair Value | $ 12,246 | $ 38,833
Available for sale securities, Total: Unrealized Losses | $ 113 | $ 1,016
Held to maturity securities, Less than 12 Months: Number of Securities | security | 6 | 10
Held to maturity securities, Less than 12 Months: Fair Value | $ 8,445 | $ 16,165
Held to maturity securities, Less than 12 Months: Unrealized Losses | $ 35 | $ 79
Held to maturity securities, 12 Months or More: Number of Securities | security | 13 | 35
Held to maturity securities, 12 Months or More: Fair Value | $ 11,050 | $ 42,431
Held to maturity securities, 12 Months or More: Unrealized Losses | $ 67 | $ 1,231
Held to maturity securities, Total: Number of Securities | security | 19 | 45
Held to maturity securities, Total: Fair Value | $ 19,495 | $ 58,596
Held to maturity securities, Total: Unrealized Losses | $ 102 | $ 1,310
State and political subdivision obligations [Member] |  |
Schedule of Investments [Line Items] |  |
Available for sale securities, Less than 12 Months: Number of Securities | security |  | 3
Available for sale securities, Less than 12 Months: Fair Value |  | $ 1,751
Available for sale securities, Less than 12 Months: Unrealized Losses |  | $ 23
Available for sale securities, 12 Months or More: Number of Securities | security |  | 51
Available for sale securities, 12 Months or More: Fair Value |  | $ 24,520
Available for sale securities, 12 Months or More: Unrealized Losses |  | $ 1,374
Available for sale securities, Total: Number of Securities | security |  | 54
Available for sale securities, Total: Fair Value |  | $ 26,271
Available for sale securities, Total: Unrealized Losses |  | $ 1,397
Held to maturity securities, Less than 12 Months: Number of Securities | security | 3 | 26
Held to maturity securities, Less than 12 Months: Fair Value | $ 1,383 | $ 11,321
Held to maturity securities, Less than 12 Months: Unrealized Losses | $ 13 | $ 111
Held to maturity securities, 12 Months or More: Number of Securities | security | 0 | 77
Held to maturity securities, 12 Months or More: Fair Value |  | $ 29,460
Held to maturity securities, 12 Months or More: Unrealized Losses |  | $ 731
Held to maturity securities, Total: Number of Securities | security | 3 | 103
Held to maturity securities, Total: Fair Value | $ 1,383 | $ 40,781
Held to maturity securities, Total: Unrealized Losses | $ 13 | $ 842
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 |  | $ 1,996
Available for sale securities, Less than 12 Months: Unrealized Losses |  | $ 4
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 |  | $ 1,996
Available for sale securities, Total: Unrealized Losses |  | $ 4
Held to maturity securities, Less than 12 Months: Number of Securities | security |  | 1
Held to maturity securities, Less than 12 Months: Fair Value |  | $ 1,529
Held to maturity securities, Less than 12 Months: Unrealized Losses |  | $ 10
Held to maturity securities, 12 Months or More: Number of Securities | security |  | 0
Held to maturity securities, Total: Number of Securities | security |  | 1
Held to maturity securities, Total: Fair Value |  | $ 1,529
Held to maturity securities, Total: Unrealized Losses |  | $ 10

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