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Securities (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2015
Dec. 31, 2014
Summary of amortized cost and approximate fair values of securities    
Amortized Cost $ 97,649 $ 83,848
Gross Unrealized Gains 1,535 1,681
Gross Unrealized Losses (398) (289)
Securities available for sale, at fair value 98,786 85,240
U.S. Treasury and Government Agencies [Member]    
Summary of amortized cost and approximate fair values of securities    
Amortized Cost 11,568 15,187
Gross Unrealized Gains $ 148 124
Gross Unrealized Losses   (4)
Securities available for sale, at fair value $ 11,716 15,307
Mortgage-backed securities [Member]    
Summary of amortized cost and approximate fair values of securities    
Amortized Cost 68,442 50,563
Gross Unrealized Gains 546 462
Gross Unrealized Losses (384) (285)
Securities available for sale, at fair value 68,604 50,740
State and political subdivisions [Member]    
Summary of amortized cost and approximate fair values of securities    
Amortized Cost 17,616 18,075
Gross Unrealized Gains 841 $ 1,093
Gross Unrealized Losses (14)  
Securities available for sale, at fair value 18,443 $ 19,170
Equity securities [Member]    
Summary of amortized cost and approximate fair values of securities    
Amortized Cost $ 23 $ 23
Gross Unrealized Gains    
Gross Unrealized Losses    
Securities available for sale, at fair value $ 23 $ 23