Borrowings (Details 1) - Federal Home Loan Bank Advances [Member] - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Debt Instrument [Line Items] | |||
| Maximum outstanding during the year FHLB advances | $ 12,200 | $ 14,000 | $ 18,000 |
| Balance outstanding at end of year FHLB advances | 2,400 | 6,000 | 14,000 |
| Average amount outstanding during the year FHLB advances | $ 5,161 | $ 9,027 | $ 15,468 |
| Average interest rate during the year FHLB advances | 1.09% | 1.88% | 2.16% |
| Average interest rate at end of year FHLB advances | 1.46% | 1.58% | 2.07% |