Investment Securities (Details 2) $ in Thousands	Jun. 30, 2018 USD ($) Investments	Dec. 31, 2017 USD ($) Investments
Available for sale
Available for sale Securities, Less than 12 months, Number of investments | Investments	33	25
Available for sale Securities, Less than 12 months, Fair value	$ 36,408	$ 27,846
Available for sale Securities, Less than 12 months, Unrealized losses	$ 756	$ 245
Available for sale Securities, 12 months or longer, Number of investments | Investments	31	28
Available for sale Securities, 12 months or longer, Fair value	$ 28,299	$ 27,511
Available for sale Securities, 12 months or Longer, Unrealized losses	$ 1,028	$ 518
Available for sale Securities, Total, Number of investments | Investments	64	53
Available for sale Securities, Total, Fair value	$ 64,707	$ 55,357
Available for sale Securities, Total, Unrealized losses	$ 1,784	$ 763
US government agencies [Member]
Available for sale
Available for sale Securities, Less than 12 months, Number of investments | Investments	6	5
Available for sale Securities, Less than 12 months, Fair value	$ 5,336	$ 4,184
Available for sale Securities, Less than 12 months, Unrealized losses	$ 118	$ 22
Available for sale Securities, 12 months or longer, Number of investments | Investments	3	4
Available for sale Securities, 12 months or longer, Fair value	$ 2,878	$ 3,968
Available for sale Securities, 12 months or Longer, Unrealized losses	$ 156	$ 75
Available for sale Securities, Total, Number of investments | Investments	9	9
Available for sale Securities, Total, Fair value	$ 8,214	$ 8,152
Available for sale Securities, Total, Unrealized losses	$ 274	$ 97
SBA securities [Member]
Available for sale
Available for sale Securities, Less than 12 months, Number of investments | Investments	1	1
Available for sale Securities, Less than 12 months, Fair value	$ 2,759	$ 2,936
Available for sale Securities, Less than 12 months, Unrealized losses	$ 106	$ 13
Available for sale Securities, 12 months or longer, Number of investments | Investments	1	1
Available for sale Securities, 12 months or longer, Fair value	$ 1,010	$ 1,127
Available for sale Securities, 12 months or Longer, Unrealized losses	$ 29	$ 11
Available for sale Securities, Total, Number of investments | Investments	2	2
Available for sale Securities, Total, Fair value	$ 3,769	$ 4,063
Available for sale Securities, Total, Unrealized losses	$ 135	$ 24
State and political subdivisions [Member]
Available for sale
Available for sale Securities, Less than 12 months, Number of investments | Investments	7	3
Available for sale Securities, Less than 12 months, Fair value	$ 4,747	$ 1,214
Available for sale Securities, Less than 12 months, Unrealized losses	$ 71	$ 9
Available for sale Securities, 12 months or longer, Number of investments | Investments	2	2
Available for sale Securities, 12 months or longer, Fair value	$ 769	$ 792
Available for sale Securities, 12 months or Longer, Unrealized losses	$ 36	$ 16
Available for sale Securities, Total, Number of investments | Investments	9	5
Available for sale Securities, Total, Fair value	$ 5,516	$ 2,006
Available for sale Securities, Total, Unrealized losses	$ 107	$ 25
Asset-backed securities [Member]
Available for sale
Available for sale Securities, Less than 12 months, Number of investments | Investments	3
Available for sale Securities, Less than 12 months, Fair value	$ 4,851
Available for sale Securities, Less than 12 months, Unrealized losses	$ 15
Available for sale Securities, 12 months or longer, Number of investments | Investments
Available for sale Securities, 12 months or longer, Fair value
Available for sale Securities, 12 months or Longer, Unrealized losses
Available for sale Securities, Total, Number of investments | Investments	3
Available for sale Securities, Total, Fair value	$ 4,851
Available for sale Securities, Total, Unrealized losses	$ 15
Mortgage-backed securities [Member] | FHLMC [Member]
Available for sale
Available for sale Securities, Less than 12 months, Number of investments | Investments	3	3
Available for sale Securities, Less than 12 months, Fair value	$ 2,610	$ 2,897
Available for sale Securities, Less than 12 months, Unrealized losses	$ 90	$ 26
Available for sale Securities, 12 months or longer, Number of investments | Investments	7	7
Available for sale Securities, 12 months or longer, Fair value	$ 5,464	$ 6,056
Available for sale Securities, 12 months or Longer, Unrealized losses	$ 237	$ 123
Available for sale Securities, Total, Number of investments | Investments	10	10
Available for sale Securities, Total, Fair value	$ 8,074	$ 8,953
Available for sale Securities, Total, Unrealized losses	$ 327	$ 149
Mortgage-backed securities [Member] | FNMA [Member]
Available for sale
Available for sale Securities, Less than 12 months, Number of investments | Investments	12	11
Available for sale Securities, Less than 12 months, Fair value	$ 14,882	$ 14,345
Available for sale Securities, Less than 12 months, Unrealized losses	$ 297	$ 135
Available for sale Securities, 12 months or longer, Number of investments | Investments	16	13
Available for sale Securities, 12 months or longer, Fair value	$ 16,386	$ 14,597
Available for sale Securities, 12 months or Longer, Unrealized losses	$ 483	$ 251
Available for sale Securities, Total, Number of investments | Investments	28	24
Available for sale Securities, Total, Fair value	$ 31,268	$ 28,942
Available for sale Securities, Total, Unrealized losses	$ 780	$ 386
Mortgage-backed securities [Member] | GNMA [Member]
Available for sale
Available for sale Securities, Less than 12 months, Number of investments | Investments	1	2
Available for sale Securities, Less than 12 months, Fair value	$ 1,223	$ 2,270
Available for sale Securities, Less than 12 months, Unrealized losses	$ 59	$ 40
Available for sale Securities, 12 months or longer, Number of investments | Investments	2	1
Available for sale Securities, 12 months or longer, Fair value	$ 1,792	$ 971
Available for sale Securities, 12 months or Longer, Unrealized losses	$ 87	$ 42
Available for sale Securities, Total, Number of investments | Investments	3	3
Available for sale Securities, Total, Fair value	$ 3,015	$ 3,241
Available for sale Securities, Total, Unrealized losses	$ 146	$ 82