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Investment (Unrealized Gain (Loss) on Investments) (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 134,336 | $ 135,008
Gross Unrealized Gains | 2,583 | 697
Gross Unrealized Losses | 6,127 | 4,400
Fair Value | 130,792 | 131,305
OTTI in AOCL | (4,507) | (2,835)
Held-to-maturity Amortized cost | 91,399 | 93,979
Held-to-maturity Gross Unrealized Gains | 6,916 | 6,832
Held-to-maturity Gross Unrealized Losses | 4 | 155
Fair Value | 98,311 | 100,656
US government agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | 34,580 | 39,987
Gross Unrealized Gains | 688 |
Gross Unrealized Losses |  | 93
Fair Value | 35,268 | 39,894
Held-to-maturity Amortized cost | 16,202 | 16,164
Held-to-maturity Gross Unrealized Gains | 655 | 659
Fair Value | 16,857 | 16,823
Residential mortgage-backed agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | 9,945 | 4,917
Gross Unrealized Gains | 202 |
Gross Unrealized Losses |  | 17
Fair Value | 10,147 | 4,900
Held-to-maturity Amortized cost | 40,666 | 42,939
Held-to-maturity Gross Unrealized Gains | 1,249 | 469
Held-to-maturity Gross Unrealized Losses | 4 | 155
Fair Value | 41,911 | 43,253
Commercial mortgage-backed agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | 29,210 | 27,634
Gross Unrealized Gains | 497 | 222
Gross Unrealized Losses | 37 | 92
Fair Value | 29,670 | 27,764
Held-to-maturity Amortized cost | 15,443 | 15,521
Held-to-maturity Gross Unrealized Gains | 799 | 344
Fair Value | 16,242 | 15,865
Collateralized mortgage obligations [Member] |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | 28,023 | 29,903
Gross Unrealized Gains | 792 | 129
Gross Unrealized Losses |  | 109
Fair Value | 28,815 | 29,923
Held-to-maturity Amortized cost | 2,873 | 3,140
Held-to-maturity Gross Unrealized Gains | 171 | 3
Fair Value | 3,044 | 3,143
Obligations of states and political subdivisions [Member] |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | 14,108 | 14,124
Gross Unrealized Gains | 404 | 346
Fair Value | 14,512 | 14,470
Held-to-maturity Amortized cost | 16,215 | 16,215
Held-to-maturity Gross Unrealized Gains | 4,042 | 5,357
Fair Value | 20,257 | 21,572
Collateralized debt obligations [Member] |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | 18,470 | 18,443
Gross Unrealized Losses | 6,090 | 4,089
Fair Value | 12,380 | 14,354
OTTI in AOCL | $ (4,507) | $ (2,835)

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