SECURITIES - Summary of available for sale securities with unrealized losses (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Unrealized Losses	$ (2,275)	$ (63)
Estimated Fair Value	153,211	7,525
Unrealized Losses	(368)	(148)
Estimated Fair Value	11,899	10,442
Unrealized Losses	(2,643)	(211)
Estimated Fair Value	165,110	17,967
U.S. Treasury Note
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Unrealized Losses	(105)
Estimated Fair Value	16,814
Unrealized Losses	0
Estimated Fair Value	0
Unrealized Losses	(105)
Estimated Fair Value	16,814
Corporate Bonds
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Unrealized Losses	(290)
Estimated Fair Value	17,183
Unrealized Losses	0
Estimated Fair Value	0
Unrealized Losses	(290)
Estimated Fair Value	17,183
U.S. Government agency obligations
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Unrealized Losses	(49)	(54)
Estimated Fair Value	9,951	3,559
Unrealized Losses	(130)	(147)
Estimated Fair Value	7,980	10,014
Unrealized Losses	(179)	(201)
Estimated Fair Value	17,931	13,573
Residential one-to-four family
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Unrealized Losses	(1,761)	(7)
Estimated Fair Value	104,805	3,228
Unrealized Losses	(144)	(1)
Estimated Fair Value	3,009	115
Unrealized Losses	(1,905)	(8)
Estimated Fair Value	107,814	3,343
Multifamily
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Unrealized Losses	0	(2)
Estimated Fair Value	0	738
Unrealized Losses	(94)	0
Estimated Fair Value	910	313
Unrealized Losses	(94)	(2)
Estimated Fair Value	910	$ 1,051
Asset-backed securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Unrealized Losses	(70)
Estimated Fair Value	4,458
Unrealized Losses	0
Estimated Fair Value	0
Unrealized Losses	(70)
Estimated Fair Value	$ 4,458

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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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