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Investment Securities (Details 2) $ in Thousands	Dec. 31, 2018 USD ($) Investments	Dec. 31, 2017 USD ($) Investments
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months | Investments	8	25
Available-for-sale Securities, Less than 12 months, Fair Value	$ 11,746	$ 27,846
Available-for-sale Securities, Less than 12 months, Unrealized losses	$ 64	$ 245
Number of investments, 12 months or longer | Investments	53	28
Available-for-sale Securities, 12 months or longer, Fair Value	$ 46,524	$ 27,511
Available-for-sale Securities, 12 months or Longer, Unrealized losses	$ 1,270	$ 518
Number of investments, Total | Investments	61	53
Available-for-sale Securities, Fair Value, Total	$ 58,270	$ 55,357
Available-for-sale Securities, Unrealized Losses, Total	$ 1,334	$ 763
US government agencies [Member]
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months | Investments	1	5
Available-for-sale Securities, Less than 12 months, Fair Value	$ 1,246	$ 4,184
Available-for-sale Securities, Less than 12 months, Unrealized losses	$ 3	$ 22
Number of investments, 12 months or longer | Investments	8	4
Available-for-sale Securities, 12 months or longer, Fair Value	$ 7,035	$ 3,968
Available-for-sale Securities, 12 months or Longer, Unrealized losses	$ 191	$ 75
Number of investments, Total | Investments	9	9
Available-for-sale Securities, Fair Value, Total	$ 8,281	$ 8,152
Available-for-sale Securities, Unrealized Losses, Total	$ 194	$ 97
SBA securities [Member]
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months | Investments		1
Available-for-sale Securities, Less than 12 months, Fair Value		$ 2,936
Available-for-sale Securities, Less than 12 months, Unrealized losses		$ 13
Number of investments, 12 months or longer | Investments	2	1
Available-for-sale Securities, 12 months or longer, Fair Value	$ 3,525	$ 1,127
Available-for-sale Securities, 12 months or Longer, Unrealized losses	$ 103	$ 11
Number of investments, Total | Investments	2	2
Available-for-sale Securities, Fair Value, Total	$ 3,525	$ 4,063
Available-for-sale Securities, Unrealized Losses, Total	$ 103	$ 24
State and political subdivisions [Member]
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months | Investments		3
Available-for-sale Securities, Less than 12 months, Fair Value		$ 1,214
Available-for-sale Securities, Less than 12 months, Unrealized losses		$ 9
Number of investments, 12 months or longer | Investments	7	2
Available-for-sale Securities, 12 months or longer, Fair Value	$ 2,829	$ 792
Available-for-sale Securities, 12 months or Longer, Unrealized losses	$ 63	$ 16
Number of investments, Total | Investments	7	5
Available-for-sale Securities, Fair Value, Total	$ 2,829	$ 2,006
Available-for-sale Securities, Unrealized Losses, Total	$ 63	$ 25
Asset-backed [Member]
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months | Investments	4
Available-for-sale Securities, Less than 12 months, Fair Value	$ 6,707
Available-for-sale Securities, Less than 12 months, Unrealized losses	$ 49
Number of investments, 12 months or longer | Investments
Available-for-sale Securities, 12 months or longer, Fair Value
Available-for-sale Securities, 12 months or Longer, Unrealized losses
Number of investments, Total | Investments	4
Available-for-sale Securities, Fair Value, Total	$ 6,707
Available-for-sale Securities, Unrealized Losses, Total	$ 49
Mortgage-backed [Member] | FHLMC [Member]
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months | Investments		3
Available-for-sale Securities, Less than 12 months, Fair Value		$ 2,897
Available-for-sale Securities, Less than 12 months, Unrealized losses		$ 26
Number of investments, 12 months or longer | Investments	10	7
Available-for-sale Securities, 12 months or longer, Fair Value	$ 7,402	$ 6,056
Available-for-sale Securities, 12 months or Longer, Unrealized losses	$ 242	$ 123
Number of investments, Total | Investments	10	10
Available-for-sale Securities, Fair Value, Total	$ 7,402	$ 8,953
Available-for-sale Securities, Unrealized Losses, Total	$ 242	$ 149
Mortgage-backed [Member] | FNMA [Member]
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months | Investments	2	11
Available-for-sale Securities, Less than 12 months, Fair Value	$ 2,689	$ 14,345
Available-for-sale Securities, Less than 12 months, Unrealized losses	$ 6	$ 135
Number of investments, 12 months or longer | Investments	23	13
Available-for-sale Securities, 12 months or longer, Fair Value	$ 22,814	$ 14,597
Available-for-sale Securities, 12 months or Longer, Unrealized losses	$ 545	$ 251
Number of investments, Total | Investments	25	24
Available-for-sale Securities, Fair Value, Total	$ 25,503	$ 29,940
Available-for-sale Securities, Unrealized Losses, Total	$ 551	$ 386
Mortgage-backed [Member] | GNMA [Member]
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months | Investments	1	2
Available-for-sale Securities, Less than 12 months, Fair Value	$ 1,104	$ 2,270
Available-for-sale Securities, Less than 12 months, Unrealized losses	$ 6	$ 40
Number of investments, 12 months or longer | Investments	3	1
Available-for-sale Securities, 12 months or longer, Fair Value	$ 2,919	$ 971
Available-for-sale Securities, 12 months or Longer, Unrealized losses	$ 126	$ 42
Number of investments, Total | Investments	4	3
Available-for-sale Securities, Fair Value, Total	$ 4,023	$ 2,243
Available-for-sale Securities, Unrealized Losses, Total	$ 132	$ 82

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