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Securities Available-for-Sale (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2018 USD ($) | Sep. 30, 2018 USD ($) Integer | Sep. 30, 2017 USD ($) | Dec. 31, 2017 USD ($) Integer
Investments, Debt and Equity Securities [Abstract] |  |  |  |
Loss on equity securities, net | $ 157 | $ 325 |  |
Available-for-sale Securities Pledged as Collateral | $ 157,000 | $ 157,000 |  | $ 157,800
Description of Holding Securities |  | there were no holdings of securities of any one issuer, other than the U.S. Government and its agencies, in an amount greater than 10% of stockholders’ equity. |  | there were no holdings of securities of any one issuer, other than the U.S. Government and its agencies, in an amount greater than 10% of stockholders’ equity.
Number of Investment Securities Sold | Integer |  | 170 |  | 112

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- Definition Amount of restricted investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
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