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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
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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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