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Loans Receivable - Additional Information (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 31, 2022 USD ($) Property Loan | Dec. 31, 2021 USD ($) Loan | Dec. 31, 2022 USD ($) Loan Property | Dec. 31, 2021 USD ($) Loan | Jun. 30, 2022 USD ($) Property Loan
Financing Receivable Recorded Investment [Line Items] |  |  |  |  |
Troubled debt restructuring | $ 18,373 |  | $ 18,373 |  | $ 22,184
Troubled debt restructuring, allowance for credit loss | 331 |  | 331 |  | $ 365
Financing receivable, troubled debt restructuring, commitment to lend | 69 |  | 69 |  |
TDR charge-offs | $ 5 | $ 0 | $ 15 | $ 0 |
Number of TDR defaults | Loan | 2 | 2 | 4 | 3 |
Number of TDR loans in process of defaulting | Loan | 2 |  | 2 |  |
TDR defaults | $ 170 | $ 0 | $ 170 | $ 0 |
Financing receivable, individually evaluated for impairment | $ 40,500 |  | $ 40,500 |  |
Number of loans in process of foreclosure | Loan |  |  |  |  | 7
Mortgage loans in process of foreclosure, carrying value |  |  |  |  | $ 1,500
Single-family Property [Member] |  |  |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |  |  |
Real estate acquired through foreclosure, number of properties | Property | 2 |  | 2 |  | 1
Real estate acquired through foreclosure | $ 454 |  | $ 454 |  | $ 178
Nonresidential Property |  |  |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |  |  |
Real estate acquired through foreclosure, number of properties | Property | 1 |  | 1 |  |
Real estate acquired through foreclosure | $ 13,000 |  | $ 13,000 |  |
Residential mortgage |  |  |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |  |  |
Number of loans in process of foreclosure | Loan | 5 |  | 5 |  |
Mortgage loans in process of foreclosure, carrying value | $ 951 |  | $ 951 |  |
Commercial Mortgage |  |  |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |  |  |
Number of loans in process of foreclosure | Loan | 6 |  | 6 |  |
Mortgage loans in process of foreclosure, carrying value | $ 9,300 |  | $ 9,300 |  |
Collateral Pledged |  |  |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |  |  |
Financing receivable, individually evaluated for impairment | $ 36,882 |  | $ 36,882 |  | $ 63,287

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