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NOTE 5: INVESTMENT SECURITIES: Investment, Policy (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
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Details |  |
Fair Value of Debt Securities Reported Less Than Their Historical Cost | $ 67,100 | $ 95,700
Debt Securities Reported Less Than Their Historical Cost Percent of Investment Portfolio | 24.20% | 39.20%

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