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Borrowings - Schedule of Remaining Borrowing Capacity with FHLB (Detail) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 227,004 | $ 210,515
Interest Rate 0.74% and 0.43% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 103,969 | 116,272
Maturity date | May 01, 2017 |
Interest Rate 4.60% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 0 | 10,000
Maturity date | Jun. 01, 2017 |
Interest Rate 4.02% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 0 | 5,000
Maturity date | Aug. 07, 2017 |
Interest Rate 4.10% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 0 | 5,000
Maturity date | Aug. 07, 2017 |
Interest Rate 4.47% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 0 | 10,000
Maturity date | Aug. 07, 2017 |
Interest Rate 0.83% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 15,016 | 0
Maturity date | Sep. 06, 2017 |
Interest Rate 3.97% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 0 | 10,000
Maturity date | Oct. 10, 2017 |
Interest Rate 1.25% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 15,093 | 30,000
Maturity date | Dec. 15, 2017 |
Interest Rate 1.05% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 17,523 | 0
Maturity date | Sep. 06, 2018 |
Interest Rate 1.17% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 18,360 | 0
Maturity date | Sep. 06, 2019 |
Interest Rate 1.35% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 13,865 | 18,781
Maturity date | Sep. 16, 2019 |
Interest Rate 1.27% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 18,780 | 0
Maturity date | Sep. 08, 2020 |
Interest Rate 1.47% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 19,201 | 0
Maturity date | Sep. 06, 2022 |
Interest Rate 4.72% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 700 | 700
Maturity date | Jul. 03, 2023 |
Interest Rate 4.31% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 1,925 | 2,049
Maturity date | Sep. 05, 2023 |
Interest Rate 3.05% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 852 | 888
Maturity date | Mar. 11, 2024 |
Interest Rate 5.24% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 462 | 488
Maturity date | Jun. 11, 2024 |
Interest Rate 3.35% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 240 | 261
Maturity date | May 04, 2026 |
Interest Rate 4.00% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 252 | 273
Maturity date | Oct. 14, 2026 |
Interest Rate 2.96% [Member] |  |
Borrowings Under Repurchase Agreements [Line items] |  |
Borrowings | $ 766 | $ 803
Maturity date | Feb. 11, 2033 |

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- Definition Federal home loan bank advances general debt obligations disclosures maturity date. + References No definition available. + Details
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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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