LOANS (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Recorded Investment
With no related allowance recorded	$ 20,784	$ 3,287	$ 2,079
With an allowance recorded	1,708	65	512
Total impaired loans	22,492	3,353	2,591
Unpaid Principal Balance
With no related allowance recorded	21,683	3,558	2,361
With an allowance recorded	3,235	66	512
Total impaired loans	24,918	3,624	2,873
Related Allocated Allowance
With an allowance recorded	1,708	1	29
Total impaired loans	1,708	1	29
Average Recorded Investment
With no related allowance recorded	10,407	1,895	2,140
With an allowance recorded	142	43	543
Average recorded investment in impaired loans	10,549	1,938	2,683
Interest Income Recognized
With no related allowance recorded	727	116	78
With an allowance recorded	174	7	32
Total impaired loans	901	123	110
Commercial real estate | Mortgage loans | Owner occupied
Recorded Investment
With no related allowance recorded	2,073	326	384
With an allowance recorded	0	0	0
Total impaired loans	2,073	326	384
Unpaid Principal Balance
With no related allowance recorded	2,073	538	564
With an allowance recorded	0	0	0
Total impaired loans	2,073	538	564
Related Allocated Allowance
With an allowance recorded	0	0	0
Total impaired loans	0	0	0
Average Recorded Investment
With no related allowance recorded	173	176	412
With an allowance recorded	0	0	0
Average recorded investment in impaired loans	173	176	412
Interest Income Recognized
With no related allowance recorded	80	10	10
With an allowance recorded	0	0	0
Total impaired loans	80	10	10
Commercial real estate | Mortgage loans | Non-owner occupied
Recorded Investment
With no related allowance recorded	9,089	1,213	927
With an allowance recorded	0	0	318
Total impaired loans	9,089	1,213	1,245
Unpaid Principal Balance
With no related allowance recorded	9,089	1,213	928
With an allowance recorded	0	0	318
Total impaired loans	9,089	1,213	1,246
Related Allocated Allowance
With an allowance recorded	0	0	20
Total impaired loans	0	0	20
Average Recorded Investment
With no related allowance recorded	7,001	614	938
With an allowance recorded	0	0	320
Average recorded investment in impaired loans	7,001	614	1,258
Interest Income Recognized
With no related allowance recorded	400	75	62
With an allowance recorded	0	0	15
Total impaired loans	400	75	77
Residential real estate | Mortgage loans | Residential
Recorded Investment
With no related allowance recorded	0	520	62
With an allowance recorded	0	0	0
Total impaired loans	0	520	62
Unpaid Principal Balance
With no related allowance recorded	0	558	73
With an allowance recorded	0	0	0
Total impaired loans	0	558	73
Related Allocated Allowance
With an allowance recorded	0	0	0
Total impaired loans	0	0	0
Average Recorded Investment
With no related allowance recorded	0	276	66
With an allowance recorded	0	0	0
Average recorded investment in impaired loans	0	276	66
Interest Income Recognized
With no related allowance recorded	0	0	0
With an allowance recorded	0	0	0
Total impaired loans	0	0	0
Residential real estate | Mortgage loans | Home equity
Recorded Investment
With no related allowance recorded	100	264	610
With an allowance recorded	0	0	0
Total impaired loans	100	264	610
Unpaid Principal Balance
With no related allowance recorded	100	285	700
With an allowance recorded	0	0	0
Total impaired loans	100	285	700
Related Allocated Allowance
With an allowance recorded	0	0	0
Total impaired loans	0	0	0
Average Recorded Investment
With no related allowance recorded	8	328	631
With an allowance recorded	0	0	0
Average recorded investment in impaired loans	8	328	631
Interest Income Recognized
With no related allowance recorded	0	0	0
With an allowance recorded	0	0	0
Total impaired loans	0	0	0
Commercial and industrial | Secured
Recorded Investment
With no related allowance recorded	7,368	556	96
With an allowance recorded	0	0	0
Total impaired loans	7,368	556	96
Unpaid Principal Balance
With no related allowance recorded	8,013	556	96
With an allowance recorded	0	0	0
Total impaired loans	8,013	556	96
Related Allocated Allowance
With an allowance recorded	0	0	0
Total impaired loans	0	0	0
Average Recorded Investment
With no related allowance recorded	2,633	274	93
With an allowance recorded	0	0	0
Average recorded investment in impaired loans	2,633	274	93
Interest Income Recognized
With no related allowance recorded	211	12	6
With an allowance recorded	0	0	0
Total impaired loans	211	12	6
Commercial and industrial | Unsecured
Recorded Investment
With no related allowance recorded	2,154	408	0
With an allowance recorded	1,708	66	194
Total impaired loans	3,862	474	194
Unpaid Principal Balance
With no related allowance recorded	2,408	408	0
With an allowance recorded	3,235	66	194
Total impaired loans	5,643	474	194
Related Allocated Allowance
With an allowance recorded	1,708	1	9
Total impaired loans	1,708	1	9
Average Recorded Investment
With no related allowance recorded	592	227	0
With an allowance recorded	142	43	223
Average recorded investment in impaired loans	734	270	223
Interest Income Recognized
With no related allowance recorded	36	19	0
With an allowance recorded	174	7	17
Total impaired loans	$ 210	$ 26	$ 17