INVESTMENT SECURITIES - Investments gross unrealized losses and fair value (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Securities available for sale:
Less Than 12 Months Unrealized losses	$ (26)	$ (3)
12 Months or More Unrealized losses	(5)	$ (12)
US Government Agencies Debt Securities [Member]
Securities available for sale:
Less Than 12 Months Fair value			$ 872
12 Months or More Fair value	524		621
12 Months or More Unrealized losses	(3)		(2)
Total Fair value	524		1,493
Total Unrealized losses	(3)		(2)
Mortgage-backed securities - GSE's [Member]
Securities available for sale:
Less Than 12 Months Fair value	1,703		2,672
Less Than 12 Months Unrealized losses	(1)		(3)
12 Months or More Fair value	1,999		3,774
12 Months or More Unrealized losses	(2)		(10)
Total Fair value	3,702		6,446
Total Unrealized losses	(3)		(13)
Corporate bonds [Member]
Securities available for sale:
Less Than 12 Months Fair value	758
Total Fair value	758
Municipal Bonds [Member]
Securities available for sale:
Less Than 12 Months Fair value	3,029
Less Than 12 Months Unrealized losses	(25)
Total Fair value	3,029
Total Unrealized losses	(25)
Total temporarily impaired securities [Member]
Securities available for sale:
Less Than 12 Months Fair value	5,490		3,544
Less Than 12 Months Unrealized losses	(26)		(3)
12 Months or More Fair value	2,523		4,395
12 Months or More Unrealized losses	(5)		(12)
Total Fair value	8,013		7,939
Total Unrealized losses	$ (31)		$ (15)

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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), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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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), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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