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Interest Rate Swaps (Tables) | 12 Months Ended
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Dec. 31, 2017
Derivative Instruments And Hedging Activities Disclosure [Abstract] |
Summary Information about Interest-Rate Swaps | Summary information about these interest-rate swaps as of year ended December 31, 2017, 2016 and 2015 is as follows:
|  | 2017 |  |  | 2016 |  |  | 2015 |
Notional amounts |  | $ | 38,481 |  |  | $ | 34,360 |  |  | $ | 30,763 |
Weighted average pay rate on interest-rate swaps |  |  | 4.46 | % |  |  | 4.34 | % |  |  | 4.25 | %
Weighted average receive rate on interest-rate swaps |  |  | 3.81 | % |  |  | 3.04 | % |  |  | 2.70 | %
Weighted average maturity (years) |  |  | 3.2 |  |  |  | 4.8 |  |  |  | 4.1 |
Fair value of interest-rate swaps |  | $ | (653 | ) |  | $ | (685 | ) |  | $ | (789 | )
Fair value of loan yield maintenance provisions |  | $ | 653 |  |  | $ | 685 |  |  | $ | 789 |

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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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