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REVENUE FROM CONTRACTS WITH CUSTOMERS - Revenue By Operating Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Change in fair value of equity securities	$ 2,141	$ 32	$ 2,165	$ 96
Gains (losses) on sales of other real estate	123	30	119	38
Financial services revenue	79	71	184	193
Total non-interest income	7,381	5,166	18,181	15,035
Overdraft fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	1,035	1,142	2,939	3,092
Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	196	127	600	586
Interchange revenue from debit card transactions
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	982	925	3,013	2,809
WMG fee income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	2,406	2,147	7,095	6,525
CFS fee and commission income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	120	139	365	452
Net gains (losses) on sales of OREO
Disaggregation of Revenue [Line Items]
Gains (losses) on sales of other real estate	123	30	119	38
Net gains on sales of loans
Disaggregation of Revenue [Line Items]
Financial services revenue	79	71	184	193
Loan servicing fees
Disaggregation of Revenue [Line Items]
Financial services revenue	22	21	67	62
Net gains (losses) on security transactions
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	0	0	0	12
Financial services revenue		0		12
Other
Disaggregation of Revenue [Line Items]
Financial services revenue	277	532	1,634	1,170
Core Banking
Disaggregation of Revenue [Line Items]
Change in fair value of equity securities	2,140	32	2,148	96
Total non-interest income	4,987	2,989	10,992	8,228
Core Banking | Overdraft fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	1,035	1,142	2,939	3,092
Core Banking | Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	196	127	600	586
Core Banking | Interchange revenue from debit card transactions
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	982	925	3,013	2,809
Core Banking | WMG fee income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	0	0	0	0
Core Banking | CFS fee and commission income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	0	0	0	0
Core Banking | Net gains (losses) on sales of OREO
Disaggregation of Revenue [Line Items]
Gains (losses) on sales of other real estate	123	30	119	38
Core Banking | Net gains on sales of loans
Disaggregation of Revenue [Line Items]
Financial services revenue	79	71	184	193
Core Banking | Loan servicing fees
Disaggregation of Revenue [Line Items]
Financial services revenue	22	21	67	62
Core Banking | Net gains (losses) on security transactions
Disaggregation of Revenue [Line Items]
Financial services revenue		0		12
Core Banking | Other
Disaggregation of Revenue [Line Items]
Financial services revenue	410	641	1,922	1,340
WMG
Disaggregation of Revenue [Line Items]
Change in fair value of equity securities	0	0	0	0
Total non-interest income	2,406	2,147	7,095	6,525
WMG | Overdraft fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	0	0	0	0
WMG | Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	0	0	0	0
WMG | Interchange revenue from debit card transactions
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	0	0	0	0
WMG | WMG fee income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	2,406	2,147	7,095	6,525
WMG | CFS fee and commission income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	0	0	0	0
WMG | Net gains (losses) on sales of OREO
Disaggregation of Revenue [Line Items]
Gains (losses) on sales of other real estate	0	0	0	0
WMG | Net gains on sales of loans
Disaggregation of Revenue [Line Items]
Financial services revenue	0	0	0	0
WMG | Loan servicing fees
Disaggregation of Revenue [Line Items]
Financial services revenue	0	0	0	0
WMG | Net gains (losses) on security transactions
Disaggregation of Revenue [Line Items]
Financial services revenue		0		0
WMG | Other
Disaggregation of Revenue [Line Items]
Financial services revenue	0	0	0	0
Holding Company, CFS, and CRM
Disaggregation of Revenue [Line Items]
Change in fair value of equity securities	1	0	17	0
Total non-interest income	(12)	30	94	282
Holding Company, CFS, and CRM | Overdraft fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	0	0	0	0
Holding Company, CFS, and CRM | Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	0	0	0	0
Holding Company, CFS, and CRM | Interchange revenue from debit card transactions
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	0	0	0	0
Holding Company, CFS, and CRM | WMG fee income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	0	0	0	0
Holding Company, CFS, and CRM | CFS fee and commission income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, including assessed tax	120	139	365	452
Holding Company, CFS, and CRM | Net gains (losses) on sales of OREO
Disaggregation of Revenue [Line Items]
Gains (losses) on sales of other real estate	0	0	0	0
Holding Company, CFS, and CRM | Net gains on sales of loans
Disaggregation of Revenue [Line Items]
Financial services revenue	0	0	0	0
Holding Company, CFS, and CRM | Loan servicing fees
Disaggregation of Revenue [Line Items]
Financial services revenue	0	0	0	0
Holding Company, CFS, and CRM | Net gains (losses) on security transactions
Disaggregation of Revenue [Line Items]
Financial services revenue		0		0
Holding Company, CFS, and CRM | Other
Disaggregation of Revenue [Line Items]
Financial services revenue	$ (133)	$ (109)	$ (288)	$ (170)

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Equity Securities, FV-NI, Gain (Loss)

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The aggregate financial services revenue and operating interest income earned during the reporting period.

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The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

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