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Repurchase Agreements - Additional Information (Detail) - USD ($)	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Assets Sold under Agreements to Repurchase [Line Items]
Maximum amount of outstanding agreements	$ 11,050,000	$ 9,244,000
Repurchase agreement monthly average amount	10,015,000	7,277,000
Repurchase agreements	10,787,000	$ 9,244,000
Maturity Overnight [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	$ 10,800,000

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- Definition

Securities sold under repurchase agreements average balance.

+ References

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- Definition

Securities sold under repurchase agreements maximum balance.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(ii)(A))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

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- Definition

Carrying value, as of the balance sheet date, of securities sold under agreements to repurchase where the transferor maintains effective control over the assets, accounting for them as secured debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481420/860-30-50-7

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