SECURITIES AVAILABLE FOR SALE - Amortized cost, gross unrealized gains and losses (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Securities Available-for-sale
Gross Amortized Cost	$ 15,697	$ 19,038
Gross Unrealized Gains	33
Gross Unrealized Losses	(35)	(150)
Total securities available for sale	15,695	18,888
Obligations of U.S. Government entities and agencies.
Debt Securities Available-for-sale
Gross Amortized Cost	12,436	15,183
Total securities available for sale	12,436	15,183
States and political subdivisions
Debt Securities Available-for-sale
Gross Amortized Cost	1,246	1,248
Gross Unrealized Gains	33
Gross Unrealized Losses		(35)
Total securities available for sale	1,279	1,213
Mortgage-backed GSE residential
Debt Securities Available-for-sale
Gross Amortized Cost	2,015	2,607
Gross Unrealized Losses	(35)	(115)
Total securities available for sale	$ 1,980	$ 2,492

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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-Section 50
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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
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-Publisher FASB
-Name Accounting Standards Codification
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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=118942338&loc=SL82898722-210454

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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