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SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure of Repurchase Agreements [Abstract] |
Summary of Securities Sold under Agreements to Repurchase | A summary of securities sold under agreements to repurchase as of and for the years ended December 31, 2017, 2016 and 2015 is as follows (in thousands):
|  | 2017 |  | 2016 |  | 2015
Balance at December 31 |  | $ | 10,000 |  |  | $ | 27,606 |  |  | $ | 28,453 |
Maximum month-end balance |  | $ | 25,718 |  |  | $ | 30,497 |  |  | $ | 32,145 |
Average balance during year |  | $ | 14,207 |  |  | $ | 29,120 |  |  | $ | 30,236 |
Weighted-average interest rate at December 31 |  | 3.72 | % |  | 3.02 | % |  | 2.93 | %
Average interest rate paid during year |  | 3.37 | % |  | 2.92 | % |  | 2.80 | %
The contractual maturity of securities sold under agreements to repurchase by collateral pledged as of December 31, 2017 and 2016 is as follows (in thousands):
| December 31, 2017
| Overnight and Continuous |  | Up to 1 Year |  | 1 - 3 Years |  | 3+ Years |  | Total
Obligations of U.S. Government and U.S. Government sponsored enterprises | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Mortgage-backed securities, residential | — |  |  | 11,798 |  |  | — |  |  | — |  |  | 11,798 |
Total | — |  |  | 11,798 |  |  | — |  |  | — |  |  | 11,798 |
Excess collateral held | — |  |  | (1,798 | ) |  | — |  |  | — |  |  | (1,798 | )
Gross amount of recognized liabilities for repurchase agreements | $ | — |  |  | $ | 10,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 10,000 |
| December 31, 2016
| Overnight and Continuous |  | Up to 1 Year |  | 1 - 3 Years |  | 3+ Years |  | Total
Obligations of U.S. Government and U.S. Government sponsored enterprises | $ | — |  |  | $ | 1,276 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,276 |
Mortgage-backed securities, residential | 13,092 |  |  | 9,664 |  |  | 14,244 |  |  | — |  |  | 37,000 |
Total | 13,092 |  |  | 10,940 |  |  | 14,244 |  |  | — |  |  | 38,276 |
Excess collateral held | (5,486 | ) |  | (940 | ) |  | (4,244 | ) |  | — |  |  | (10,670 | )
Gross amount of recognized liabilities for repurchase agreements | $ | 7,606 |  |  | $ | 10,000 |  |  | $ | 10,000 |  |  | $ | — |  |  | $ | 27,606 |

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- Definition The entire disclosure for repurchase agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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