Investment securities available for sale (Details 2) - USD ($)
$ in Thousands |
Sep. 30, 2017 |
Dec. 31, 2016 |
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Securities in a loss position for less than12 Months, Fair Value |
$ 27,311
|
$ 36,741
|
| Securities in a loss position for less than12 Months, Unrealized Losses |
(110)
|
(260)
|
| Securities in a loss position for more than 12 Months, Fair Value |
13,067
|
2,852
|
| Securities in a loss Position for more than 12 Months, Unrealized Losses |
(79)
|
(16)
|
| Total Fair Value |
40,378
|
42,593
|
| Total Unrealized Losses |
(189)
|
(276)
|
| U.S. Government Agencies [Member] |
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Securities in a loss position for less than12 Months, Fair Value |
19,511
|
27,291
|
| Securities in a loss position for less than12 Months, Unrealized Losses |
(95)
|
(213)
|
| Securities in a loss position for more than 12 Months, Fair Value |
12,480
|
2,852
|
| Securities in a loss Position for more than 12 Months, Unrealized Losses |
(74)
|
(16)
|
| Total Fair Value |
31,991
|
33,143
|
| Total Unrealized Losses |
(169)
|
(229)
|
| Mortgage Backed Securities [Member] |
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Securities in a loss position for less than12 Months, Fair Value |
7,800
|
9,450
|
| Securities in a loss position for less than12 Months, Unrealized Losses |
(15)
|
(47)
|
| Securities in a loss position for more than 12 Months, Fair Value |
587
|
0
|
| Securities in a loss Position for more than 12 Months, Unrealized Losses |
(5)
|
0
|
| Total Fair Value |
8,387
|
9,450
|
| Total Unrealized Losses |
$ (20)
|
$ (47)
|