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Investment Securities (Details Textual) $ in Millions | Mar. 31, 2019 USD ($) Investments | Dec. 31, 2018 Investments
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Investment Securities (Textual) |  |
Fair market value, less than 12 months, number of investments | Investments | 7 | 8
Fair market value, less than 12 months | $ | $ 9.0 |
Fair market value, 12 months or longer, number of investments | Investments | 50 |
Fair market value, 12 months or longer | $ | $ 44.2 |

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- Definition Investment securities. + References No definition available. + Details
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- Definition Investments with fair market value in continuous unrealized loss position for less than twelve months. + References No definition available. + Details
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- Definition Investments with fair market value In continuous unrealized loss position twelve months or longer. + References No definition available. + Details
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- Definition Number of investment in continuous unrealized loss position twelve months or longer. + References No definition available. + Details
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- Definition Number of investments in continuous unrealized loss position, less than twelve months. + References No definition available. + Details
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