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Loans - Repossessed Assets (Details) - USD ($) | Sep. 30, 2017 | Jun. 30, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Dec. 31, 2015
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Repossessed and foreclosed assets |  |  |  |  |  |
Mortgage loans in process of foreclosure | $ 1,200,000 |  |  |  |  |
Other real estate owned | 9,024,000 | $ 11,724,000 | $ 11,916,000 | $ 14,144,000 | $ 16,252,000 | $ 19,141,000
Real estate - residential |  |  |  |  |  |
Repossessed and foreclosed assets |  |  |  |  |  |
Mortgage loans in process of foreclosure | 1,200,000 |  | 1,800,000 |  |  |
Other real estate owned | $ 937,000 |  | $ 225,000 |  |  |

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