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Loans Receivable - Additional Information (Details) | 12 Months Ended |
--- | --- | ---
Jun. 30, 2024 USD ($) property loan | Jun. 30, 2023 USD ($) property loan | Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($)
Financing Receivable Recorded Investment [Line Items] |  |  |  |
Loans and leases receivable, related parties | $ 2,400,000 | $ 2,500,000 |  |
Number of new loans to related parties | loan | 0 |  |  |
Interest income on non-accrual loans | $ 0 | 0 | $ 0 |
Financing receivable, modified, commitment to lend | $ 0 |  |  |
Number of modified loans | loan | 2 |  |  |
TDR defaults |  | 649,000 |  |
Financing receivable, modified, accumulated |  | 17,361,000 |  |
Loans acquired with deteriorated credit quality | $ 44,939,000 | 48,734,000 | 47,058,000 | $ 58,165,000
TDR charge-offs |  | $ 121,000 |  |
Number of TDR default loans | loan |  | 2 |  |
Financing receivable, individually evaluated for impairment | 39,900,000 |  |  |
Carrying amount of PCD loans | 141,000 | $ 215,000 |  |
Allowance for credit losses PCD loans | 15,700,000 | 18,900,000 |  |
Other real estate owned |  | 13,000,000.0 |  |
Collateral Pledged |  |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |  |
Financing receivable, individually evaluated for impairment | $ 32,613,000 | $ 38,196,000 |  |
Nonresidential Property |  |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |  |
Number of other real estate owned acquired through foreclosure | property | 0 | 1 |  |
Residential Mortgage |  |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |  |
Number of loans in process of foreclosure | loan | 3 |  |  |
Commercial Mortgage |  |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |  |
Number of loans in process of foreclosure | loan | 6 |  |  |
Mortgage loans in process of foreclosure, carrying value | $ 13,600,000 |  |  |
One- to four-family residential mortgage |  |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |  |
TDR defaults | 514,000 |  |  |
Financing receivable, modified, accumulated |  | $ 7,526,000 |  |
Loans acquired with deteriorated credit quality | 11,461,000 | $ 10,237,000 | $ 7,540,000 | $ 9,747,000
Number of loans in process of foreclosure | loan |  | 3 |  |
Mortgage loans in process of foreclosure, carrying value | 1,200,000 | $ 1,000,000.0 |  |
One- to four-family residential mortgage | Collateral Pledged |  |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |  |
Financing receivable, individually evaluated for impairment | $ 1,406,000 | 2,875,000 |  |
Troubled Debt Restructurings |  |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |  |
Loans acquired with deteriorated credit quality |  | $ 274,000 |  |

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
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