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Note 2: Investments in Securities: Held to Maturity Securities (Details) - US States and Political Subdivisions Debt Securities - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
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Held to Maturity Securities Amortized Cost | $ 130 | $ 247
Held to Maturity Securities Gross Unrealized Gains | 1 | 11
Held to Maturity Securities Gross Unrealized Losses | 0 | 0
Held-to-maturity Securities, Fair Value | $ 131 | $ 258

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- Definition Fair value of investments in debt securities classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 + Details
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