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Summary of Significant Accounting Policies - Schedule of Impact of ASC 326 on Consolidated Balance Sheet (Details) - USD ($) | Sep. 30, 2024 | Jun. 30, 2024 | Jul. 01, 2023
--- | --- | --- | ---
Assets [Abstract] |  |  |
Allowance for credit losses |  |  | $ (1,163,000)
Deferred income taxes |  |  | 1,971,000
Liabilities [Abstract] |  |  |
Liability for credit losses for unfunded commitments | $ 41,000 | $ 0 |
Retained earnings | $ 117,572,000 | $ 116,205,000 | 127,065,000
ASU 2016-13 |  |  |
Liabilities [Abstract] |  |  |
Retained earnings |  |  | 34,000
Pre-ASC 326 |  |  |
Assets [Abstract] |  |  |
Allowance for credit losses |  |  | (1,116,000)
Deferred income taxes |  |  | 1,958,000
Liabilities [Abstract] |  |  |
Retained earnings |  |  | 127,099,000
Impact of ASC 326 | ASU 2016-13 |  |  |
Assets [Abstract] |  |  |
Allowance for credit losses |  |  | (47,000)
Deferred income taxes |  |  | 13,000
Liabilities [Abstract] |  |  |
Retained earnings |  |  | (34,000)
Other Commercial Real Estate |  |  |
Assets [Abstract] |  |  |
Allowance for credit losses |  |  | (4,000)
Other Commercial Real Estate | Pre-ASC 326 |  |  |
Assets [Abstract] |  |  |
Allowance for credit losses |  |  | (4,000)
Residential |  |  |
Assets [Abstract] |  |  |
Allowance for credit losses |  |  | (1,066,000)
Residential | Pre-ASC 326 |  |  |
Assets [Abstract] |  |  |
Allowance for credit losses |  |  | (1,039,000)
Residential | Impact of ASC 326 | ASU 2016-13 |  |  |
Assets [Abstract] |  |  |
Allowance for credit losses |  |  | (27,000)
Consumer |  |  |
Assets [Abstract] |  |  |
Allowance for credit losses |  |  | (93,000)
Consumer | Pre-ASC 326 |  |  |
Assets [Abstract] |  |  |
Allowance for credit losses |  |  | (73,000)
Consumer | Impact of ASC 326 | ASU 2016-13 |  |  |
Assets [Abstract] |  |  |
Allowance for credit losses |  |  | $ (20,000)

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