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Securities (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Summary of amortized cost and approximate fair values of securities    
Amortized Cost $ 90,120 $ 88,805
Gross Unrealized Gains 2,371 1,411
Gross Unrealized Losses (19) (427)
Fair Value 92,472 89,789
U.S. Treasury and Government agencies [Member]    
Summary of amortized cost and approximate fair values of securities    
Amortized Cost 11,600 10,804
Gross Unrealized Gains 137 101
Gross Unrealized Losses
Fair Value 11,737 10,905
Mortgage-backed securities [Member]    
Summary of amortized cost and approximate fair values of securities    
Amortized Cost 63,237 61,459
Gross Unrealized Gains 1,131 311
Gross Unrealized Losses (19) (427)
Fair Value 64,349 61,343
State and political subdivisions [Member]    
Summary of amortized cost and approximate fair values of securities    
Amortized Cost 15,260 16,519
Gross Unrealized Gains 1,103 999
Gross Unrealized Losses
Fair Value 16,363 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