COMMITMENTS AND CONTINGENCIES - Commitment (Details) - Commitments to Extend Credit - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments	$ 639,896	$ 558,631
REAL ESTATE LOANS.
Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments	403,232	332,378
Commercial
Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments	470	787
Construction and development
Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments	248,840	182,297
One-to-four-family
Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments	71,952	78,264
Home equity.
Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments	78,495	67,596
Multi-family
Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments	3,475	3,434
CONSUMER LOANS.
Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments	40,729	35,873
COMMERCIAL BUSINESS LOANS.
Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments	195,935	190,380
Commercial and industrial
Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments	134,298	126,220
Warehouse lending
Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments	$ 61,637	$ 64,160