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Other Long-term Debt (Detail) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Amount |  |
Long-term debt | $ 8,161 | $ 8,749
Borrowings from FHLB [Member] |  |
Amount |  |
2015 |  | 586
2016 | 607 | 609
2017 | 631 | 633
2018 | 656 | 658
2019 | 681 | 684
2020 | 708 |
Thereafter |  | $ 5,579
Thereafter | $ 4,878 |
2015, Weighted Average Contractual Rate |  | 3.83%
2016, Weighted Average Contractual Rate | 3.83% | 3.83%
2017, Weighted Average Contractual Rate | 3.83% | 3.84%
2018, Weighted Average Contractual Rate | 3.84% | 3.84%
2019, Weighted Average Contractual Rate | 3.84% | 3.84%
2020, Weighted Average Contractual Rate | 3.85% |
Thereafter, Weighted Average Contractual Rate |  | 3.81%
Thereafter, Weighted Average Contractual Rate | 3.80% |

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