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Securities (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Dec. 31, 2015
Summary of amortized cost and approximate fair values of securities |  |
Amortized Cost | $ 90,815 | $ 92,689
Gross Unrealized Gains | 1,904 | 1,411
Gross Unrealized Losses | (30) | (427)
Fair Value | 92,689 | 89,789
U.S. Treasury and Government agencies [Member] |  |
Summary of amortized cost and approximate fair values of securities |  |
Amortized Cost | 13,920 | 10,804
Gross Unrealized Gains | 115 | 101
Gross Unrealized Losses | (2) |
Fair Value | 14,033 | 10,905
Mortgage-backed securities [Member] |  |
Summary of amortized cost and approximate fair values of securities |  |
Amortized Cost | 61,882 | 61,459
Gross Unrealized Gains | 905 | 311
Gross Unrealized Losses | (27) | (427)
Fair Value | 62,760 | 61,343
State and political subdivisions [Member] |  |
Summary of amortized cost and approximate fair values of securities |  |
Amortized Cost | 14,990 | 16,519
Gross Unrealized Gains | 884 | 999
Gross Unrealized Losses | (1) |
Fair Value | 15,873 | 17,518
Equity securities [Member] |  |
Summary of amortized cost and approximate fair values of securities |  |
Amortized Cost | 23 | 23
Gross Unrealized Gains |  |
Gross Unrealized Losses |  |
Fair Value | $ 23 | $ 23

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