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NOTE 5: INVESTMENT SECURITIES: Investment Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Available for Sale Securities Fair Value | $ 191,251 |
Debt Securities, Held-to-maturity, Fair Value | 0 | $ 131
Available-for-sale Securities |  |
Available For Sale Securities Amortized Cost Amount | 193,305 | 177,230
Available-for-sale Securities, Gross Unrealized Gain | 1,953 | 3,587
Available-for-sale Securities, Gross Unrealized Loss | 4,007 | 1,638
Available for Sale Securities Fair Value | $ 191,251 | $ 179,179
Available for Sale Securities Tax Equivalent Yield | 3.12% | 2.96%
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises |  |
Available For Sale Securities Amortized Cost Amount | $ 124,777 | $ 123,300
Available-for-sale Securities, Gross Unrealized Gain | 639 | 871
Available-for-sale Securities, Gross Unrealized Loss | 3,891 | 1,638
Available for Sale Securities Fair Value | $ 121,525 | $ 122,533
Available for Sale Securities Tax Equivalent Yield | 2.44% | 2.19%
Collateralized Mortgage Obligations |  |
Available For Sale Securities Amortized Cost Amount | $ 17,481 |
Available-for-sale Securities, Gross Unrealized Gain | 0 |
Available-for-sale Securities, Gross Unrealized Loss | 97 |
Available for Sale Securities Fair Value | $ 17,384 |
Available for Sale Securities Tax Equivalent Yield | 3.03% |
US States and Political Subdivisions Debt Securities |  |
Available For Sale Securities Amortized Cost Amount | $ 51,047 | $ 53,930
Available-for-sale Securities, Gross Unrealized Gain | 1,314 | 2,716
Available-for-sale Securities, Gross Unrealized Loss | 19 | 0
Available for Sale Securities Fair Value | $ 52,342 | $ 56,646
Available for Sale Securities Tax Equivalent Yield | 4.81% | 4.72%
Held to Maturity Securities Amortized Cost |  | $ 130
Held to Maturity Securities Gross Unrealized Gains |  | 1
Held to Maturity Securities Gross Unrealized Losses |  | 0
Debt Securities, Held-to-maturity, Fair Value |  | $ 131
Held to Maturity Securities Tax Equivalent Yield |  | 6.14%

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