FAIR VALUE MEASUREMENT, Fair Value of Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets [Abstract]
Investment securities available-for-sale	$ 29,927	$ 22,681
Recurring [Member]
Assets [Abstract]
Investment securities available-for-sale	29,927	22,681
Interest only strips	96	119
Servicing assets	118	158
Total	30,141	22,958
Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Investment securities available-for-sale	146	115
Interest only strips	0	0
Servicing assets	0	0
Total	146	115
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Investment securities available-for-sale	29,781	22,566
Interest only strips	0	0
Servicing assets	0	0
Total	29,781	22,566
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Assets [Abstract]
Investment securities available-for-sale	0	0
Interest only strips	96	119
Servicing assets	118	158
Total	$ 214	$ 277

This line item represents the present value of excess net cash flows generated by the difference between (a) interest at the stated rate paid by borrowers and (b) the sum of (i) pass-through interest paid to third-party investors and (ii) contractual servicing fees.

No definition available.

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26610-111562

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- Definition

Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122625-111746

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