LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Impaired Financing Receivables (Details) - USD ($)	6 Months Ended	12 Months Ended
Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Impaired [Line Items]
Recorded Investment with specific reserves	$ 21,000	$ 26,000
Unpaid Principal Balance with specific reserves	35,000	36,000
Interest Income Recognized with specific reserves	1,000	2,000
Specific Reserve with specific reserves	14,000	10,000
Average Recorded Investment	48,000	49,000
Recorded Investment with no specific reserve	185,000	301,000
Unpaid Principal Balance with no specific reserve	185,000	301,000
Interest Income Recognized with no specific reserve	5,000	12,000
Average Recorded Investment with no specific reserve	270,000	350,000
Real Estate Loan
Financing Receivable, Impaired [Line Items]
Recorded Investment with specific reserves	21,000	26,000
Unpaid Principal Balance with specific reserves	35,000	36,000
Interest Income Recognized with specific reserves	1,000	2,000
Specific Reserve with specific reserves	14,000	10,000
Average Recorded Investment	48,000	49,000
Recorded Investment with no specific reserve	75,000	87,000
Unpaid Principal Balance with no specific reserve	75,000	87,000
Interest Income Recognized with no specific reserve	2,000	3,000
Average Recorded Investment with no specific reserve	99,000	98,000
Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Recorded Investment with no specific reserve		71,000
Unpaid Principal Balance with no specific reserve		71,000
Interest Income Recognized with no specific reserve		1,000
Average Recorded Investment with no specific reserve		71,000
Consumer Loans
Financing Receivable, Impaired [Line Items]
Recorded Investment with no specific reserve	110,000	143,000
Unpaid Principal Balance with no specific reserve	110,000	143,000
Interest Income Recognized with no specific reserve	3,000	8,000
Average Recorded Investment with no specific reserve	171,000	181,000
Single-family \| Real Estate Loan
Financing Receivable, Impaired [Line Items]
Recorded Investment with specific reserves	21,000	26,000
Unpaid Principal Balance with specific reserves	35,000	36,000
Interest Income Recognized with specific reserves	1,000	2,000
Specific Reserve with specific reserves	14,000	10,000
Average Recorded Investment	48,000	49,000
Recorded Investment with no specific reserve	75,000	87,000
Unpaid Principal Balance with no specific reserve	75,000	87,000
Interest Income Recognized with no specific reserve	2,000	3,000
Average Recorded Investment with no specific reserve	99,000	98,000
Single-family \| Consumer Loans
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance with specific reserves	34,876
Specific Reserve	14,068
SBA Guaranty \| Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Recorded Investment with no specific reserve		71,000
Unpaid Principal Balance with no specific reserve		71,000
Interest Income Recognized with no specific reserve		1,000
Average Recorded Investment with no specific reserve		71,000
Automobile \| Consumer Loans
Financing Receivable, Impaired [Line Items]
Recorded Investment with no specific reserve	110,000	143,000
Unpaid Principal Balance with no specific reserve	110,000	143,000
Interest Income Recognized with no specific reserve	3,000	8,000
Average Recorded Investment with no specific reserve	$ 171,000	$ 181,000

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524

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Amount of allowance for credit losses related to recorded investment.

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Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of interest income, recognized on cash basis, on financing receivables, for which there is no related allowance for credit losses and are recognized as impaired.

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Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
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-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524

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Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses.

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Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524

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-Publisher FASB
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-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524

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Amount of interest income on financing receivables, for which there is a related allowance for credit losses, recognized on a cash-basis method of accounting that the financing receivables were impaired.

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