GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS - GOODWILL (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Balance for goodwill
Beginning of period	$ 10,168	$ 10,168	$ 10,168
Acquired goodwill	6,132	0	0
End of period	$ 16,300	$ 10,168	$ 10,168