Borrowings (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Federal Home Loan Bank, Advances [Line Items] |
|
|
| Advances from Federal Home Loan Banks, Total |
$ 2,400
|
$ 6,000
|
| Federal Home Loan Bank, Advances One [Member] |
|
|
| Federal Home Loan Bank, Advances [Line Items] |
|
|
| Federal Home Loan Bank, Advances, Interest Rate, Type |
Fixed Rate
|
Fixed Rate
|
| Federal Home Loan Bank, Advances, Date |
Jun. 01, 2017
|
Feb. 25, 2016
|
| Federal Home Loan Bank, Advances, Interest Rate |
1.06%
|
2.65%
|
| Advances from Federal Home Loan Banks, Total |
$ 800
|
$ 1,000
|
| Federal Home Loan Bank, Advances Two [Member] |
|
|
| Federal Home Loan Bank, Advances [Line Items] |
|
|
| Federal Home Loan Bank, Advances, Interest Rate, Type |
Fixed Rate
|
Fixed Rate
|
| Federal Home Loan Bank, Advances, Date |
Dec. 01, 2017
|
Apr. 11, 2016
|
| Federal Home Loan Bank, Advances, Interest Rate |
1.27%
|
2.71%
|
| Advances from Federal Home Loan Banks, Total |
$ 800
|
$ 1,000
|
| Federal Home Loan Bank, Advances Three [Member] |
|
|
| Federal Home Loan Bank, Advances [Line Items] |
|
|
| Federal Home Loan Bank, Advances, Interest Rate, Type |
Fixed Rate
|
Fixed Rate
|
| Federal Home Loan Bank, Advances, Date |
Jun. 01, 2018
|
Jun. 01, 2016
|
| Federal Home Loan Bank, Advances, Interest Rate |
1.48%
|
0.56%
|
| Advances from Federal Home Loan Banks, Total |
$ 800
|
$ 800
|
| Federal Home Loan Bank, Advances Four [Member] |
|
|
| Federal Home Loan Bank, Advances [Line Items] |
|
|
| Federal Home Loan Bank, Advances, Interest Rate, Type |
|
Fixed Rate
|
| Federal Home Loan Bank, Advances, Date |
|
Dec. 01, 2016
|
| Federal Home Loan Bank, Advances, Interest Rate |
|
0.81%
|
| Advances from Federal Home Loan Banks, Total |
|
$ 800
|
| Federal Home Loan Bank, Advances Five [Member] |
|
|
| Federal Home Loan Bank, Advances [Line Items] |
|
|
| Federal Home Loan Bank, Advances, Interest Rate, Type |
|
Fixed Rate
|
| Federal Home Loan Bank, Advances, Date |
|
Jun. 01, 2017
|
| Federal Home Loan Bank, Advances, Interest Rate |
|
1.06%
|
| Advances from Federal Home Loan Banks, Total |
|
$ 800
|
| Federal Home Loan Bank, Advances Six [Member] |
|
|
| Federal Home Loan Bank, Advances [Line Items] |
|
|
| Federal Home Loan Bank, Advances, Interest Rate, Type |
|
Fixed Rate
|
| Federal Home Loan Bank, Advances, Date |
|
Dec. 01, 2017
|
| Federal Home Loan Bank, Advances, Interest Rate |
|
1.27%
|
| Advances from Federal Home Loan Banks, Total |
|
$ 800
|
| Federal Home Loan Bank, Advances Seven [Member] |
|
|
| Federal Home Loan Bank, Advances [Line Items] |
|
|
| Federal Home Loan Bank, Advances, Interest Rate, Type |
|
Fixed Rate
|
| Federal Home Loan Bank, Advances, Date |
|
Jun. 01, 2018
|
| Federal Home Loan Bank, Advances, Interest Rate |
|
1.48%
|
| Advances from Federal Home Loan Banks, Total |
|
$ 800
|