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Loans Receivable - Summary of Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Jun. 30, 2024 | Sep. 30, 2023 | Jun. 30, 2023
--- | --- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans | $ 770,629 | $ 735,017 | $ 695,498 |
Allowance for credit losses | (5,075) | (5,229) | (5,325) | $ (1,116)
Deferred loan costs, net | 2,163 | 2,071 |  |
Loans receivable, net | 767,717 | 731,859 |  |
Owner Occupied Commercial Real Estate Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans | 59,229 | 59,968 | 60,850 |
Allowance for credit losses | (789) | (1,331) | (1,403) | 0
Other Commercial Real Estate Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans | 75,415 | 75,782 |  |
Multi-Family Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans | 205,929 | 180,364 | 171,427 |
Allowance for credit losses | (1,889) | (1,998) | $ (1,936) | $ 0
Commercial and Industrial Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans | 12,092 | 12,522 |  |
Total Commercial Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans | 352,665 | 328,636 |  |
Residential Mortgage Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans | 406,258 | 394,723 |  |
Consumer and Other Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans | $ 11,706 | $ 11,658 |  |

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