BORROWED FUNDS - Term Notes from the FHLB (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Borrowed funds
Borrowings from the FHLB	$ 2,573	$ 3,188
Fixed Interest Rate Notes, Originating Between October 2006 and April 2007, Due Between October 2021 and April 2022 [Member] \| Minimum
Borrowed funds
Interest rate on debt security	5.18%
Fixed Interest Rate Notes, Originating Between October 2006 and April 2007, Due Between October 2021 and April 2022 [Member] \| Maximum
Borrowed funds
Interest rate on debt security	5.20%
Fixed interest rate notes, originating between October 2006 and April 2007, due between October 2021 and April 2022, interest of between 5.18% and 5.20% payable monthly
Borrowed funds
Borrowings from the FHLB	$ 1,798	2,390
Amortizing fixed interest rate note, originating February 2007, due February 2022, payable in monthly installments of $5 thousand, including interest of 5.22%
Borrowed funds
Borrowings from the FHLB	$ 775	$ 798
Interest rate on debt security	5.22%
Monthly installments	$ 5

Contractual interest rate for funds borrowed, under the debt agreement.

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 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64702-112823

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
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