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Federal Home Loan Bank and Short-term Borrowings (Tables) | 12 Months Ended
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Dec. 31, 2017
Federal Home Loan Bank And Short Term Borrowings [Abstract] |
Schedule of swaps designated as cash flow hedges |
|  |  |  |  |  |  |  |  |  |  |  | At December 31, |
|  |  |  |  |  |  |  |  |  |  |  | 2017 |  | 2016 |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  | Unrealized |  |  |  |  | Unrealized |
|  | Notional |  | Pay |  | Receive |  |  |  | Assets/ |  | Gain (Loss) |  | Assets/ |  | Gain (Loss) |
(dollars in thousands) |  | Amount |  | Rate |  | Rate |  | Term |  | Liabilities |  | AOCI |  | Liabilities |  | AOCI |
Interest rate swap on FHLB advance |  | $ | 10,000 |  | 2.105 | % |  | 3M LIBOR |  | 11/2017 - 10/2022 |  | $ | 30 |  | $ | 21 |  | $ | — |  | $ | — |
Forward-starting interest rate swap on FHLB advance |  |  | 5,000 |  | 2.235 | % |  | 3M LIBOR |  | 7/2018 - 7/2023 |  |  | 10 |  |  | 7 |  |  | — |  |  | — |
Forward-starting interest rate swap on FHLB advance |  |  | 5,000 |  | 2.246 | % |  | 3M LIBOR |  | 8/2018 - 8/2023 |  |  | 9 |  |  | 7 |  |  | — |  |  | — |
Total |  | $ | 20,000 |  |  |  |  |  |  |  |  | $ | 49 |  | $ | 35 |  | $ | — |  | $ | — |
Schedule of total interest expense recorded on swap transactions |
|  |  |  | Years Ended December 31, |
(dollars in thousands) |  | Bank Position |  | 2017 |  | 2016 |
Interest rate swap on FHLB advance |  | Pay fixed/receive variable |  | $ | 12 |  | $ | — |
Forward-starting interest rate swap on FHLB advance |  | Pay fixed/receive variable |  |  | — |  |  | — |
Forward-starting interest rate swap on FHLB advance |  | Pay fixed/receive variable |  |  | — |  |  | — |
Total |  |  |  | $ | 12 |  | $ | — |

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- Definition Tabular disclosure of interest expense recorded on swap transaction. + References No definition available. + Details
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- Definition Tabular disclosure of interest rate derivatives, including, but not limited to, the fair value of the derivatives, statement of financial position location, and statement of financial performance location of these instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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