Defined contribution plan, voluntary contributions by employees, percent.

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- Definition

Market value of funding rate

+ References

No definition available.

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- Definition

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
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-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-Publisher FASB
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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

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- Definition

Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Balance Type:	debit
Period Type:	duration

- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

+ Details

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- Definition

Description of defined contribution pension and other postretirement plans.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The amount of plan compensation cost recognized during the period.

+ References

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-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480489/718-40-50-1

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount reported as a liability as of the balance sheet date by the entity (the employer) of the loan made by a third-party lender directly to the ESOP.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 40
-Name Accounting Standards Codification
-Section 25
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480637/718-40-25-9

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Balance Type:	credit
Period Type:	instant

- Definition

Fair value of unearned shares held by the employee stock ownership plan (ESOP).

+ References

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-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480489/718-40-50-1

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Period Type:	instant

- Definition

The shares that, although not legally released, will be released by a future scheduled and committed debt service payment and will be allocated to employees for service rendered in the current accounting period. The ESOP documents typically define the period of service to which the shares relate. ESOP shares are released to compensate employees directly, to settle employer liabilities for other employee benefits, and to replace dividends on allocated shares that are used for debt service.

+ References

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-SubTopic 40
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-Paragraph 1
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- Definition

Description of the plan, including the basis for determining contributions, the employee groups covered, and the nature and effect of significant matters affecting comparability of information for all periods presented. For leveraged ESOPs and pension reversion ESOPs, the description generally includes the basis for releasing shares and how dividends on allocated and unallocated shares are used.

+ References

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-Subparagraph (a)
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- Definition

Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	instant

- Definition

Amount of cost (reversal of cost) for pension and other postretirement benefits.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
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-Subparagraph (SX 210.9-03(15))
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-SubTopic 210
-Name Accounting Standards Codification
-Section S99
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-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Data Type:	na
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- Details

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- Details

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Employee Benefits Plan - Additional Information (Details) - USD ($)			12 Months Ended
	Sep. 16, 2025	Aug. 19, 2025	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023	Jul. 01, 2024	Jul. 01, 2023
Employee Stock Ownership Plan (ESOP), Number of Committed-to-be-Released Shares per year			5,114	5,112
Purchase of shares by the ESOP (in shares)			255,648	255,648
ESOP loan balance			$ 2,300,000
Debt Instrument, Term			25 years
Employee Stock Ownership Plan (ESOP), Compensation Expense			$ 81,000	$ 69,000
Employee Stock Ownership Plan (ESOP) [Member]
Fair value of unallocated shares			3,000,000	1,500,000
Subsequent Event [Member] \| Employee Stock Ownership Plan (ESOP) [Member]
Employee stock ownership plan (ESOP), Plan description	the board of directors approved a resolution authorizing the Company to freeze the ESOP as of October 31, 2025.
Pentegra DB Plan [Member]
Defined benefit plan, Contributions by employer			$ 439,000	675,000
Defined contribution plan, Employer matching contribution, Percent of match			5.00%
Market value of funding rate						101.90%	102.91%
Pentegra DB Plan [Member] \| Subsequent Event [Member]
Defined Benefit Plan Contribution, Description		the board of directors approved a resolution authorizing the Company to freeze the Pentegra DB Plan as of October 31, 2025.
FourHundredAndOne K Plan [Member]
Defined contribution plan, Employer matching contribution, Percent of employees gross pay			3.00%
Defined contribution plan, Employer discretionary contribution amount			$ 21,000	21,000
FourHundredAndOne K Plan [Member] \| Subsequent Event [Member]
Defined Benefit Plan Contribution, Description	the board of directors approved a resolution authorizing the Company to freeze the 401(k) Plan as of October 31, 2025.
FourHundredAndOne K Plan [Member] \| Maximum [Member]
Defined contribution plan, Voluntary contributions by Employees, Percent			15.00%
Defined contribution plan, Employer matching contribution, Percent of match			10.00%
FourHundredAndOne K Plan [Member] \| Minimum [Member]
Defined contribution plan, Voluntary contributions by Employees, Percent			2.00%
Pension Plan [Member]
Defined benefit plan, Service cost			$ 441,000	703,000
Pension Plan [Member] \| Pentegra DB Plan [Member]
Defined benefit plan, Contributions by employer				63,406,000	$ 151,773,000
Supplemental Employee Retirement Plan [Member]
Liability, Defined benefit plan			1,007,000	941,000
Pension and other postretirement benefits, Expenses			65,000	64,000
Cash surrender value of life insurance			6,300,000	6,100,000
Postretirement Life Insurance [Member] \| Split Dollar Agreements [Member]
Cash surrender value of life insurance			4,600,000	4,600,000
Other Postretirement Benefits Plan [Member] \| Split Dollar Agreements [Member]
Pension and other postretirement benefits, Expenses			$ 82,000	$ 59,000
Tax-Qualified Retirement Plan [Member]
Employee Stock Ownership Plan (ESOP), Number of Committed-to-be-Released Shares per year			10,226