REVENUE FROM CONTRACTS WITH CUSTOMERS (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Revenue from Contract with Customer [Abstract]
Receivables from customers	$ 678		$ 678		$ 682
Disaggregation of Revenue [Line Items]
Other service charges	409	$ 119	1,189	$ 440
Mortgage banking activities	735	797	2,049	2,113
Income from life insurance	533	275	1,101	814
Other income	56	34	272	147
Investment securities gains	29	533	891	1,190
Total noninterest income	5,492	5,256	16,699	15,214
Service charges on deposits
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	926	876	2,599	2,531
Trust and investment management income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	1,668	1,551	5,037	4,620
Brokerage income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	455	424	1,514	1,409
Merchant and bankcard fees (interchange income)
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	681	647	2,047	1,950
Noninterest income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 3,730	$ 3,498	$ 11,197	$ 10,510

For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Income from mortgage banking activities (fees and commissions) and servicing real estate mortgages, credit cards, and other financial assets held by others net of any related impairment of capitalized service costs. Also includes any premiums received in lieu of regular servicing fees on such loans only as earned over the life of the loans.

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