LOANS HELD FOR INVESTMENT, NET - Amortized cost (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 880	$ 3,732
% of Total Class of Financing Receivable	0.00%	0.00%
Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 132	$ 132
Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		2,852
Term Extension and Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	472	472
Significant Payment Delay And Interest Rate Deduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	276	276
Business Loan Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 880	$ 880
% of Total Class of Financing Receivable	0.00%	0.00%
Business Loan Portfolio Segment [Member] \| Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 132	$ 132
Business Loan Portfolio Segment [Member] \| Term Extension and Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	472	472
Business Loan Portfolio Segment [Member] \| Significant Payment Delay And Interest Rate Deduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 276	276
One-to-four family residential and cooperative/condominium apartment
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		$ 2,852
% of Total Class of Financing Receivable	0.00%	0.30%
One-to-four family residential and cooperative/condominium apartment \| Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		$ 2,852
Multifamily residential and residential mixed-use
Financing Receivable, Allowance for Credit Loss [Line Items]
% of Total Class of Financing Receivable	0.00%	0.00%
Non-owner Occupied Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
% of Total Class of Financing Receivable	0.00%	0.00%
Acquisition, development, and construction ("ADC")
Financing Receivable, Allowance for Credit Loss [Line Items]
% of Total Class of Financing Receivable	0.00%	0.00%
Other Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
% of Total Class of Financing Receivable	0.00%	0.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

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