Income Taxes - Temporary Differences Related to Deferred Taxes (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Deferred tax assets
Allowance for credit losses (ACL) on loans	$ 2,134	$ 2,033
ACL on off-balance sheet credit exposures	28	62
Accrued retirement liability	726	693
Deferred compensation	678	612
Deferred loan fees	99	126
Unrealized losses on available-for-sale securities	8,280	8,658
Accrued vacation	70	56
MPF recourse liability	29	36
Deferred revenue Mastercard	9	12
Stock options - Directors	0	54
Restricted stock	20	61
Accrued professional services	21	27
Other	3	28
Total deferred tax assets	12,097	12,458
Deferred tax liabilities
Postretirement health plan	(83)	(27)
Depreciation	(815)	(698)
Mortgage servicing rights	(425)	(423)
Deferred loan expense	(214)	(204)
Prepaid expenses	(77)	(69)
Total deferred tax liabilities	(1,614)	(1,421)
Net deferred tax asset	$ 10,483	$ 11,037

Deferred tax assets accrued vacation.

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Deferred tax assets restricted stock.

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Deferred Tax Assets Tax ACL on Off-balance Sheet Credit Exposures.

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Deferred tax assets tax deferred expense mortgage partnership finance recourse liability.

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Deferred tax assets, tax deferred loan fees.

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Deferred tax assets tax deferred revenue mastercard.

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Deferred tax assets tax postretirement health plan.

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Deferred tax assets unrealized loss on available for sale securities gross.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
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-URI https://asc.fasb.org/1943274/2147482685/740-10-50-6

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from allowance for credit loss on financing receivable.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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Amount of deferred tax liability attributable to taxable temporary differences from financing arrangements.

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Amount of deferred tax liability attributable to taxable temporary differences from mortgage servicing rights.

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Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses.

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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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