INVESTMENTS IN LOW-INCOME HOUSING PARTNERSHIPS (Narrative) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2017 USD ($) Partnership	Dec. 31, 2016 USD ($)
Real Estate Partnership Investment Subsidiaries, Net Income (Loss) before Tax [Abstract]
Number of limited partnerships in low-income properties \| Partnership	3
Investments in low-income housing partnerships \| $	$ 2,446	$ 2,899

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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