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Other Assets Investments in Limited Partnerships (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Schedule of Equity Method Investments [Line Items] |  |
Investment in limited partnerships | $ 4,176,000 | $ 4,261,000
Share of the partnerships’ income | 459,000 | 354,000
Aldine Capital Fund, LP |  |
Schedule of Equity Method Investments [Line Items] |  |
Investment in limited partnerships | 600,000 | 904,000
Aldine Capital Fund II, LP |  |
Schedule of Equity Method Investments [Line Items] |  |
Investment in limited partnerships | 3,400,000 | $ 3,400,000
Aldine Capital Fund III, LP |  |
Schedule of Equity Method Investments [Line Items] |  |
Investment in limited partnerships | $ 188,000 |

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