GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Goodwill [Roll Forward]
Beginning of year			$ 21,824	$ 21,824	$ 21,824
Acquired goodwill			0	0
Ending balance	$ 21,824	$ 21,824	21,824	21,824	21,824
Finite-lived intangible assets, net [Abstract]
Balance Acquired			11,608		11,608
Accumulated Amortization	9,899		9,899		9,523
Aggregate amortization expense	182	$ 213	376	$ 439
Finite-lived intangible assets, future amortization expense [Abstract]
2018	358		358
2019	609		609
2020	484		484
2021	258		258
2022	0		0
Total	1,709		1,709
Core deposit intangibles
Finite-lived intangible assets, net [Abstract]
Balance Acquired			5,975		5,975
Accumulated Amortization	5,395		5,395		5,196
Other customer relationship intangibles
Finite-lived intangible assets, net [Abstract]
Balance Acquired			5,633		5,633
Accumulated Amortization	$ 4,504		$ 4,504		$ 4,327