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Investment Securities (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Available for sale    
Total investment securities available for sale, Amortized Cost $ 81,649 $ 65,244
Total investment securities available for sale, Gross Unrealized Gains 342 163
Total investment securities available for sale, Gross Unrealized Losses 612 927
Available-for-sale securities, investment securities, Fair Value 81,379 64,480
US government agencies [Member]    
Available for sale    
Total investment securities available for sale, Amortized Cost 9,260 6,271
Total investment securities available for sale, Gross Unrealized Gains 12 1
Total investment securities available for sale, Gross Unrealized Losses 72 113
Available-for-sale securities, investment securities, Fair Value 9,200 6,159
SBA securities [Member]    
Available for sale    
Total investment securities available for sale, Amortized Cost 4,438 1,453
Total investment securities available for sale, Gross Unrealized Gains
Total investment securities available for sale, Gross Unrealized Losses 21 16
Available-for-sale securities, investment securities, Fair Value 4,417 1,437
State and political subdivisions [Member]    
Available for sale    
Total investment securities available for sale, Amortized Cost 20,129 20,625
Total investment securities available for sale, Gross Unrealized Gains 321 141
Total investment securities available for sale, Gross Unrealized Losses 72 292
Available-for-sale securities, investment securities, Fair Value 20,378 20,474
Mortgage-backed securities [Member]    
Available for sale    
Total investment securities available for sale, Amortized Cost 47,822 36,895
Total investment securities available for sale, Gross Unrealized Gains 9 21
Total investment securities available for sale, Gross Unrealized Losses 447 506
Available-for-sale securities, investment securities, Fair Value $ 47,384 $ 36,410