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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Bank's Loans by Risk Ratings (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jun. 30, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 177,010	$ 178,009
Loans and Leases Receivable, Gross		178,009
1-4 family [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		140,109
Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		12,638
Second mortgages and home equity lines of credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		2,699
Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		49
Home improvement [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		2,191
Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		176,578
Pass [Member] | 1-4 family [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		138,678
Pass [Member] | Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		12,638
Pass [Member] | Second mortgages and home equity lines of credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		2,699
Pass [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		49
Pass [Member] | Home improvement [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		2,191
Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		1,431
Special Mention [Member] | 1-4 family [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		1,431
Special Mention [Member] | Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		0
Special Mention [Member] | Second mortgages and home equity lines of credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		0
Special Mention [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		0
Special Mention [Member] | Home improvement [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		0
Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans		20,323
Loans and Leases Receivable, Gross		20,323
Commercial [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		20,323
Commercial [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		0
Residential Real Estate Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans		$ 0

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