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NOTE 5: INVESTMENT SECURITIES: Investment Securities (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2017 | Dec. 31, 2016
Available For Sale Securities Amortized Cost Amount | $ 180,977 |
Available for Sale Securities Fair Value | 183,968 |
Held-to-maturity Securities, Fair Value | 133 | $ 258
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises |  |
Available For Sale Securities Amortized Cost Amount | 125,924 | 146,491
Available-for-sale Securities, Gross Unrealized Gain | 999 | 1,045
Available-for-sale Securities, Gross Unrealized Loss | 1,113 | 1,501
Available for Sale Securities Fair Value | $ 125,810 | $ 146,035
Available for Sale Securities Tax Equivalent Yield | 2.08% | 2.03%
US States and Political Subdivisions Debt Securities |  |
Available For Sale Securities Amortized Cost Amount | $ 55,053 | $ 64,682
Available-for-sale Securities, Gross Unrealized Gain | 3,105 | 3,163
Available-for-sale Securities, Gross Unrealized Loss | 0 | 8
Available for Sale Securities Fair Value | $ 58,158 | $ 67,837
Available for Sale Securities Tax Equivalent Yield | 5.60% | 5.73%
Held to Maturity Securities Amortized Cost | $ 130 | $ 247
Held to Maturity Securities Gross Unrealized Gains | 3 | 11
Held to Maturity Securities Gross Unrealized Losses | 0 | 0
Held-to-maturity Securities, Fair Value | $ 133 | $ 258
Held to Maturity Securities Tax Equivalent Yield | 7.37% | 7.36%
Available-for-sale Securities |  |
Available For Sale Securities Amortized Cost Amount | $ 180,977 | $ 211,173
Available-for-sale Securities, Gross Unrealized Gain | 4,104 | 4,208
Available-for-sale Securities, Gross Unrealized Loss | 1,113 | 1,509
Available for Sale Securities Fair Value | $ 183,968 | $ 213,872
Available for Sale Securities Tax Equivalent Yield | 3.15% | 3.16%

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