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Loans and Allowance for Credit Losses - Additional Information (Detail) | 9 Months Ended |
--- | --- | ---
Mar. 31, 2025 USD ($) SecurityLoan | Jun. 30, 2024 USD ($)
Loans and Allowance for Credit Losses [Line Items] |  |
Maximum term of fixed-rate one- to four-family residential mortgage loans | 15 years |
Number of Modifications | SecurityLoan | 0 |
Foreclosed residential real estate properties | $ 40,000 | $ 0
Fair Value, Concentration of Risk, Collateral Policy [Member] |  |
Loans and Allowance for Credit Losses [Line Items] |  |
Commercial and multi-family real estate | $ 343,295,000 | 346,499,000
Troubled Debt Restructurings [Member] |  |
Loans and Allowance for Credit Losses [Line Items] |  |
Minimum period for default | 90 days |
Residential Real Estate [Member] |  |
Loans and Allowance for Credit Losses [Line Items] |  |
Foreclosed residential real estate properties | $ 0 | 40,000,000
One- to four-family [Member] |  |
Loans and Allowance for Credit Losses [Line Items] |  |
Loans held for sale | $ 0 | 0
Maximum term of fixed-rate one- to four-family residential mortgage loans | 15 years |
Purchased Loans and Loan Participations [Member] |  |
Loans and Allowance for Credit Losses [Line Items] |  |
Approximate amount of purchase loans included in loans receivable | $ 211,000 | 253,000
Approximate amount of loans included on out-of-area participation | 56,320,000 | 51,798,000
Amount within 100 miles of primary area | $ 39,232,000 | $ 34,929,000

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- Definition Fair value of loan receivable subject to concentration of credit or market risk or both. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-21 + Details
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