INVESTMENT SECURITIES (Schedule of Securities with Unrealized Losses) (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020 USD ($) item	Dec. 31, 2019 USD ($) item
Held-to-maturity Securities
Number of securities of one issuer | item	0	0
Impairment loss	$ 0	$ 0
Equity securities
Held-to-maturity Securities
12 months or more, Estimated Fair Value		2,224
12 months or more, Unrealized/Unrecognized Losses		(34)
Total, Estimated Fair Value		2,224
Total, Unrealized Losses		(34)
Available-for-sale Securities
Available-for-sale Securities
Less than 12 Months, Estimated Fair Value	388	32,761
Less than 12 Months, Unrealized/Unrecognized Losses	(5)	(70)
12 months or more, Estimated Fair Value		6,728
12 months or more, Unrealized/Unrecognized Losses		(65)
Total, Estimated Fair Value	388	39,489
Total, Unrealized/Unrecognized Losses	(5)	(135)
Held-to-maturity Securities
Held-to-maturity Securities
12 months or more, Estimated Fair Value		1,470
12 months or more, Unrealized/Unrecognized Losses		(19)
Total, Estimated Fair Value		1,470
Total, Unrealized Losses		(19)
Residential mortgage-backed securities | Available-for-sale Securities
Available-for-sale Securities
Less than 12 Months, Estimated Fair Value		22,850
Less than 12 Months, Unrealized/Unrecognized Losses		(52)
12 months or more, Estimated Fair Value		6,728
12 months or more, Unrealized/Unrecognized Losses		(65)
Total, Estimated Fair Value		29,578
Total, Unrealized/Unrecognized Losses		(117)
Residential mortgage-backed securities | Held-to-maturity Securities
Held-to-maturity Securities
12 months or more, Estimated Fair Value		1,470
12 months or more, Unrealized/Unrecognized Losses		(19)
Total, Estimated Fair Value		1,470
Total, Unrealized Losses		(19)
Commercial mortgage-backed securities issued by U.S. government sponsored entities | Available-for-sale Securities
Available-for-sale Securities
Less than 12 Months, Estimated Fair Value		9,911
Less than 12 Months, Unrealized/Unrecognized Losses		(18)
Total, Estimated Fair Value		9,911
Total, Unrealized/Unrecognized Losses		(18)
Commercial collateralized mortgage obligations | Available-for-sale Securities
Available-for-sale Securities
Less than 12 Months, Estimated Fair Value	388
Less than 12 Months, Unrealized/Unrecognized Losses	(5)
Total, Estimated Fair Value	388
Total, Unrealized/Unrecognized Losses	$ (5)
CRA mutual fund | Equity securities
Held-to-maturity Securities
12 months or more, Estimated Fair Value		2,224
12 months or more, Unrealized/Unrecognized Losses		(34)
Total, Estimated Fair Value		2,224
Total, Unrealized Losses		$ (34)