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Investment Securities - Contractual Maturities of Investment Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Available for Sale Amortized Cost |  |
Due within one year | $ 2,382 |
Due over one to five years | 617 |
Due over five to ten years | 13,012 |
Due over ten years | 53,194 |
Amortized Cost | 69,205 | $ 71,437
Available for Sale Fair Value |  |
Due within one year | 2,390 |
Due over one to five years | 623 |
Due over five to ten years | 13,107 |
Due over ten years | 54,052 |
Fair Value | $ 70,172 | $ 71,486
Available for Sale, Yield |  |
Within one year | 1.77% |
Over one to five years | 1.81% |
Over five to ten years | 1.76% |
Over ten years | 2.17% |

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