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Other Long-term Debt (Tables) | 12 Months Ended
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Dec. 31, 2017
Debt Disclosure [Abstract] |
Summary of Other Long-Term Debt | Other long-term debt at December 31 follows:
| 2017 |  | 2016
| Amount |  | Weighted Average Contractual Rate |  | Amount |  | Weighted Average Contractual Rate
| (dollars in thousands)
Borrowings from FHLB due: |  |  |  |  |  |  |
2017 |  |  |  |  | $ | 586 |  |  | 3.83 | %
2018 | $ | 607 |  |  | 3.83 | % |  | 609 |  |  | 3.83 |
2019 | 631 |  |  | 3.83 |  |  | 633 |  |  | 3.84 |
2020 | 656 |  |  | 3.84 |  |  | 658 |  |  | 3.84 |
2021 | 681 |  |  | 3.84 |  |  | 684 |  |  | 3.84 |
2022 | 708 |  |  | 3.85 |  |  |  |  |
Thereafter | 4,878 |  |  | 3.80 |  |  | 5,579 |  |  | 3.81 |
Total | $ | 8,161 |  |  |  |  | $ | 8,749 |  |  |

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