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Investment Securities - Amortized Cost and Fair Value by Contractual Maturity (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Amortized Cost |  |
Due in one year or less | $ 12,023 |
Due after one year through five years | 27,002 |
Due after five years through ten years | 20,448 |
Due after ten years | 10,128 |
Total | 69,601 |
Mortgage-backed securities | 105,522 |
Total available-for-sale securities | 175,123 | $ 222,578
Fair Value |  |
Due in one year or less | 12,023 |
Due after one year through five years | 27,043 |
Due after five years through ten years | 20,445 |
Due after ten years | 9,966 |
Total | 69,477 |
Mortgage-backed securities | 105,616 |
Total available-for-sale securities | $ 175,093 | $ 218,205

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