Investment Securities (Details 1) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Loan maturity distribution by type and related interest rate
Available-for-sale Securities, Contractual Maturities, Less than one year, Value
Available-for-sale Securities, Contractual Maturities, Less than one year, Yield
Available-for-sale Securities, Contractual Maturities, One to five years, Value	$ 6,338	$ 3,268
Available-for-sale Securities, Contractual Maturities, One to five years, Yield	1.59%	1.55%
Available-for-sale Securities, Contractual Maturities, Five to ten years, Value	$ 28,067	$ 25,976
Available-for-sale Securities, Contractual Maturities, Five to ten years, Yield	2.18%	2.10%
Available-for-sale Securities, Contractual Maturities, Over ten years, Value	$ 46,974	$ 35,236
Available-for-sale Securities, Contractual Maturities, Over ten years, Yield	2.23%	1.85%
Investment securities available for sale, Value	$ 81,379	$ 64,480
Available-for-sale Securities, Contractual Securities, Yield Total	2.16%	1.93%
US government agencies [Member]
Loan maturity distribution by type and related interest rate
Available-for-sale Securities, Contractual Maturities, Less than one year, Value
Available-for-sale Securities, Contractual Maturities, Less than one year, Yield
Available-for-sale Securities, Contractual Maturities, One to five years, Value	$ 3,015	$ 997
Available-for-sale Securities, Contractual Maturities, One to five years, Yield	1.70%	1.15%
Available-for-sale Securities, Contractual Maturities, Five to ten years, Value	$ 6,185	$ 5,162
Available-for-sale Securities, Contractual Maturities, Five to ten years, Yield	2.38%	2.23%
Available-for-sale Securities, Contractual Maturities, Over ten years, Value
Available-for-sale Securities, Contractual Maturities, Over ten years, Yield
Investment securities available for sale, Value	$ 9,200	$ 6,159
Available-for-sale Securities, Contractual Securities, Yield Total	2.16%	2.06%
SBA securities [Member]
Loan maturity distribution by type and related interest rate
Available-for-sale Securities, Contractual Maturities, Less than one year, Value
Available-for-sale Securities, Contractual Maturities, Less than one year, Yield
Available-for-sale Securities, Contractual Maturities, One to five years, Value
Available-for-sale Securities, Contractual Maturities, One to five years, Yield
Available-for-sale Securities, Contractual Maturities, Five to ten years, Value
Available-for-sale Securities, Contractual Maturities, Five to ten years, Yield
Available-for-sale Securities, Contractual Maturities, Over ten years, Value	$ 4,417	$ 1,437
Available-for-sale Securities, Contractual Maturities, Over ten years, Yield	2.43%	1.32%
Investment securities available for sale, Value	$ 4,417	$ 1,437
Available-for-sale Securities, Contractual Securities, Yield Total	2.43%	1.32%
State and political subdivisions [Member]
Loan maturity distribution by type and related interest rate
Available-for-sale Securities, Contractual Maturities, Less than one year, Value
Available-for-sale Securities, Contractual Maturities, Less than one year, Yield
Available-for-sale Securities, Contractual Maturities, One to five years, Value	$ 2,409	$ 2,271
Available-for-sale Securities, Contractual Maturities, One to five years, Yield	1.55%	1.73%
Available-for-sale Securities, Contractual Maturities, Five to ten years, Value	$ 12,196	$ 12,287
Available-for-sale Securities, Contractual Maturities, Five to ten years, Yield	2.36%	2.35%
Available-for-sale Securities, Contractual Maturities, Over ten years, Value	$ 5,773	$ 5,916
Available-for-sale Securities, Contractual Maturities, Over ten years, Yield	2.82%	2.77%
Investment securities available for sale, Value	$ 20,378	$ 20,474
Available-for-sale Securities, Contractual Securities, Yield Total	2.39%	2.40%
Mortgage-backed securities [Member]
Loan maturity distribution by type and related interest rate
Available-for-sale Securities, Contractual Maturities, Less than one year, Value
Available-for-sale Securities, Contractual Maturities, Less than one year, Yield
Available-for-sale Securities, Contractual Maturities, One to five years, Value	$ 914
Available-for-sale Securities, Contractual Maturities, One to five years, Yield	1.36%
Available-for-sale Securities, Contractual Maturities, Five to ten years, Value	$ 9,686	$ 8,527
Available-for-sale Securities, Contractual Maturities, Five to ten years, Yield	1.82%	1.64%
Available-for-sale Securities, Contractual Maturities, Over ten years, Value	$ 36,784	$ 27,883
Available-for-sale Securities, Contractual Maturities, Over ten years, Yield	2.12%	1.68%
Investment securities available for sale, Value	$ 47,384	$ 36,410
Available-for-sale Securities, Contractual Securities, Yield Total	2.03%	1.67%