LOANS AND ALLOWANCE FOR LOAN LOSSES (Troubled Debt Restructuring Loans) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) loan	Sep. 30, 2016 loan	Sep. 30, 2017 USD ($) loan	Sep. 30, 2016 loan	Dec. 31, 2016 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	38		38		35
Recorded Investment	$ 6,416		$ 6,416		$ 5,747
Specific Reserve	$ 483		$ 483		$ 483
Number of Contracts | loan	3	6	5	6
Residential Real Estate
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	25		25		21
Recorded Investment	$ 3,728		$ 3,728		$ 3,221
Specific Reserve	$ 464		$ 464		$ 483
Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	3		3		3
Recorded Investment	$ 987		$ 987		$ 1,008
Specific Reserve	$ 19		$ 19		$ 0
Commercial
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	8		8		10
Recorded Investment	$ 1,393		$ 1,393		$ 1,502
Specific Reserve	$ 0		$ 0		$ 0
Consumer
Financing Receivable, Modifications [Line Items]
Number of Contracts | loan	2		2		1
Recorded Investment	$ 308		$ 308		$ 16
Specific Reserve	$ 0		$ 0		$ 0