LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Loans and Leases Individually Evaluated for Impairment by Class of Loans (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Unpaid Principal Balance
Total	$ 24,026	$ 13,409
Recorded Investment
Total	24,050	13,352
Allowance for Loan and Lease Losses	1,217	243
Average Recorded Investment	16,158	31,081	$ 33,022
Interest Income Recognized	207	1,077	1,238
Cash Basis Interest Recognized	190	1,076	1,252
Other consumer
Unpaid Principal Balance
With an allowance recorded	157	0
Recorded Investment
With an allowance recorded	162	0
Allowance for Loan and Lease Losses	7	0
Commercial \| Commercial and industrial
Unpaid Principal Balance
With no related allowance recorded	471	2,478
With an allowance recorded	3,146	0
Recorded Investment
With no related allowance recorded	453	2,429
With an allowance recorded	3,129	0
Allowance for Loan and Lease Losses	498	0
Average Recorded Investment	1,034	3,490	6,750
Interest Income Recognized	0	183	305
Cash Basis Interest Recognized	0	208	302
Commercial \| Commercial real estate
Recorded Investment
Average Recorded Investment	0	148	353
Interest Income Recognized	0	24	37
Cash Basis Interest Recognized	0	24	37
Commercial \| Multifamily
Recorded Investment
Average Recorded Investment	0	0	395
Interest Income Recognized	0	0	13
Cash Basis Interest Recognized	0	0	15
Commercial \| SBA
Unpaid Principal Balance
With no related allowance recorded	342	0
With an allowance recorded	635	0
Recorded Investment
With no related allowance recorded	335	0
With an allowance recorded	609	0
Allowance for Loan and Lease Losses	435	0
Average Recorded Investment	357	0	7
Interest Income Recognized	0	0	2
Cash Basis Interest Recognized	0	0	0
Commercial \| Construction
Recorded Investment
Average Recorded Investment	382	0	0
Interest Income Recognized	0	0	0
Cash Basis Interest Recognized	0	0	0
Commercial \| Lease financing
Recorded Investment
Average Recorded Investment	19	0	0
Interest Income Recognized	0	0	0
Cash Basis Interest Recognized	0	0	0
Consumer \| Single family residential mortgage
Unpaid Principal Balance
With no related allowance recorded	7,521	8,865
With an allowance recorded	7,090	1,772
Recorded Investment
With no related allowance recorded	7,553	8,887
With an allowance recorded	7,146	1,742
Allowance for Loan and Lease Losses	277	243
Average Recorded Investment	12,611	27,150	25,093
Interest Income Recognized	199	862	869
Cash Basis Interest Recognized	182	835	885
Consumer \| Other consumer
Unpaid Principal Balance
With no related allowance recorded	4,664	294
Recorded Investment
With no related allowance recorded	4,663	294
Average Recorded Investment	1,757	294	424
Interest Income Recognized	8	8	12
Cash Basis Interest Recognized	$ 8	$ 9	$ 13

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524

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