GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and other intangibles assets	$ 44,580	$ 45,686
Goodwill	42,200	42,200
Finite-Lived Intangible Assets [Line Items]
Amortization expense	1,106	1,106
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 1,100	$ 1,100