LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Loans - Impaired Financing Receivables (Details) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Impaired [Line Items]
Recorded Investment with specific reserves	$ 162,000	$ 254,000
Unpaid Principal Balance with specific reserves	332,000	333,000
Interest Income Recognized with specific reserves	1,000	21,000
Specific Reserve with specific reserves	170,000	79,000
Average Recorded Investment	543,000	547,000
Recorded Investment with no specific reserve	271,000	155,000
Unpaid Principal Balance with no specific reserve	271,000	155,000
Interest Income Recognized with no specific reserve	4,000	8,000
Average Recorded Investment with no specific reserve	178,000	186,000
Real Estate Loan
Financing Receivable, Impaired [Line Items]
Recorded Investment with specific reserves	12,000	14,000
Unpaid Principal Balance with specific reserves	33,000	34,000
Interest Income Recognized with specific reserves	1,000	2,000
Specific Reserve with specific reserves	21,000	20,000
Average Recorded Investment	44,000	48,000
Recorded Investment with no specific reserve	78,000	70,000
Unpaid Principal Balance with no specific reserve	78,000	70,000
Interest Income Recognized with no specific reserve	1,000	2,000
Average Recorded Investment with no specific reserve	89,000	79,000
Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Recorded Investment with specific reserves	150,000	240,000
Unpaid Principal Balance with specific reserves	299,000	299,000
Interest Income Recognized with specific reserves		19,000
Specific Reserve with specific reserves	149,000	59,000
Average Recorded Investment	499,000	499,000
Consumer Loans
Financing Receivable, Impaired [Line Items]
Recorded Investment with no specific reserve	193,000	85,000
Unpaid Principal Balance with no specific reserve	193,000	85,000
Interest Income Recognized with no specific reserve	3,000	6,000
Average Recorded Investment with no specific reserve	89,000	107,000
Single-family Residential \| Real Estate Loan
Financing Receivable, Impaired [Line Items]
Recorded Investment with specific reserves	12,000	14,000
Unpaid Principal Balance with specific reserves	32,983	34,000
Interest Income Recognized with specific reserves	1,000	2,000
Specific Reserve with specific reserves	21,000	20,000
Average Recorded Investment	44,000	48,000
Recorded Investment with no specific reserve	78,000	70,000
Unpaid Principal Balance with no specific reserve	78,000	70,000
Interest Income Recognized with no specific reserve	1,000	2,000
Specific Reserve loan	20,629
Average Recorded Investment with no specific reserve	89,000	79,000
Commercial \| Real Estate Loan
Financing Receivable, Impaired [Line Items]
Specific Reserve with specific reserves	149,000
Commercial and Industrial \| Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Recorded Investment with specific reserves	150,000	240,000
Unpaid Principal Balance with specific reserves	299,453	299,000
Interest Income Recognized with specific reserves		19,000
Specific Reserve with specific reserves	149,000	59,000
Average Recorded Investment	499,000	499,000
Specific Reserve loan	149,453
Automobile \| Consumer Loans
Financing Receivable, Impaired [Line Items]
Recorded Investment with no specific reserve	193,000	85,000
Unpaid Principal Balance with no specific reserve	193,000	85,000
Interest Income Recognized with no specific reserve	3,000	6,000
Average Recorded Investment with no specific reserve	$ 89,000	$ 107,000

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 https://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.

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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 https://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 https://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.

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

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-SubTopic 10
-Section 50
-Paragraph 17
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524

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