INVESTMENT SECURITIES - Securities with unrealized losses (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Fair Value	$ 1,363	$ 35,983
Less than 12 months, Unrealized Losses	(112)	(238)
12 months or Longer, Fair Value		6,797
12 months or Longer, Unrealized Losses		(171)
Total Fair Value	1,363	42,780
Total Unrealized Losses	(112)	(409)
Association ("GNMA") mortgage-backed securities - residential
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Fair Value		28,203
Less than 12 months, Unrealized Losses		(193)
12 months or Longer, Fair Value		4,450
12 months or Longer, Unrealized Losses		(142)
Total Fair Value		32,653
Total Unrealized Losses		(335)
Federal National Mortgage Association ("FNMA") mortgage-backed securities - residential
Debt Securities, Available-for-sale [Line Items]
12 months or Longer, Fair Value		2,347
12 months or Longer, Unrealized Losses		(29)
Total Fair Value		2,347
Total Unrealized Losses		(29)
Corporate collateralized mortgage obligations ("CMO") and mortgage-backed securities ("MBS")
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Fair Value	1,363	7,780
Less than 12 months, Unrealized Losses	(112)	(45)
Total Fair Value	1,363	7,780
Total Unrealized Losses	$ (112)	$ (45)

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 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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