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Investment Securities - Other (Details) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 USD ($) security | Jun. 30, 2019 USD ($) | Jun. 30, 2020 USD ($) security | Jun. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) security
Investment Securities |  |  |  |  |
Number of securities consisted in portfolio | security | 316 |  | 316 |  | 322
Number of securities in loss position | security | 14 |  | 14 |  | 128
Aggregate fair value of securities in loss position | $ 4,344,000 |  | $ 4,344,000 |  | $ 81,018,000
Loss position for 12 months or longer | 2,973,000 |  | 2,973,000 |  | 52,658,000
Aggregate unrealized loss included in accumulated other comprehensive income (loss) | 297,000 |  | 297,000 |  | $ 798,000
Proceeds from sale of available for sale debt securities | 808,000 |  | 1,490,000 | $ 0 |
Gains realized on sales | $ 6,000 | $ 0 | $ 6,000 |  |

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