GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS (Details 2) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 29,901	$ 26,937
Accumulated Amortization	(20,560)	(17,089)
Net Carrying Amount	9,341	9,848
Core deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	26,736	23,917
Accumulated Amortization	(18,100)	(15,390)
Net Carrying Amount	8,636	8,527
Other intangible assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,165	3,020
Accumulated Amortization	(2,460)	(1,699)
Net Carrying Amount	$ 705	$ 1,321