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Loans and Allowance for Loan Losses - Non Accruals (Detail) - USD ($) $ in Thousands | Sep. 30, 2021 | Jun. 30, 2020
--- | --- | ---
Mortgages on real estate: |  |
Total | $ 34 | $ 34
One- to four-family [Member] |  |
Mortgages on real estate: |  |
Total | 34 | 34
Real Estate Loans Home Equity Lines Of Credit [Member] |  |
Mortgages on real estate: |  |
Total | 0 | 0
Consumer Loans [Member] |  |
Mortgages on real estate: |  |
Total | 0 | 0
Commercial [Member] |  |
Mortgages on real estate: |  |
Total |  | 0
Commercial Business Loans [Member] |  |
Mortgages on real estate: |  |
Total | $ 0 | $ 0

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