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Nature of Operations and Summary of Significant Accounting Policies Securities (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Trading securities | $ 0 | $ 0

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- References No definition available. + Details
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118954083&loc=d3e26610-111562 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118954083&loc=d3e26610-111562 + Details
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