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REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables) | 3 Months Ended
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Mar. 31, 2018
Revenue from Contract with Customer [Abstract] |
Noninterest Income Disaggregated by Revenue | The following table presents our noninterest income disaggregated by revenue source for the three months ended March 31, 2018 and 2017.
| Three Months Ended
(Dollars in thousands, except per share data) | March 31, 2018 |  | March 31, 2017
Noninterest income |  |  |
Service charges on deposits | $ | 838 |  |  | $ | 804 |
Investment advisory income | 1,668 |  |  | 1,446 |
Brokerage income | 558 |  |  | 467 |
Merchant and bankcard fees (interchange income) | 655 |  |  | 636 |
Revenue from contracts with customers | 3,719 |  |  | 3,353 |
Other service charges | 174 |  |  | 127 |
Mortgage banking activities | 635 |  |  | 503 |
Earnings on life insurance | 277 |  |  | 268 |
Other income | 81 |  |  | 81 |
Investment securities gains | 816 |  |  | 3 |
Total noninterest income | $ | 5,702 |  |  | $ | 4,335 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
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