Short-term Borrowings - Schedule of Information Concerning Short-term Borrowings (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Short Term Debt [Line Items] | ||
| Short-term borrowings advances | $ 3,199,000 | $ 27,204,000 |
| Security Repurchase Agreements | ||
| Short Term Debt [Line Items] | ||
| Average daily balance | $ 2,713,000 | $ 2,019,000 |
| Weighted average rate | 0.15% | 0.15% |
| Highest month-end balance | $ 3,315,000 | $ 2,526,000 |
| Short-term borrowings advances | $ 3,199,000 | $ 2,523,000 |
| Weighted average rate on outstandings at year-end | 0.15% | 0.15% |
| Other Short-term Borrowings | ||
| Short Term Debt [Line Items] | ||
| Average daily balance | $ 9,359,000 | $ 588,000 |
| Weighted average rate | 0.39% | 0.52% |
| Highest month-end balance | $ 45,000,000 | $ 24,681,000 |
| Short-term borrowings advances | $ 24,681,000 | |
| Weighted average rate on outstandings at year-end | 0.46% | |