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Repurchase Agreements - Additional Information (Detail) - USD ($) | 12 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020
Assets Sold under Agreements to Repurchase [Line Items] |  |
Maximum amount of outstanding agreements | $ 7,142,000 | $ 3,939,000
Repurchase agreement monthly average amount | 5,421,000 | 3,398,000
Repurchase agreements | 6,245,000 | $ 3,738,000
Maturity Overnight [Member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Repurchase agreements | 4,900,000 |
Maturity 30 to 90 Days [Member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Repurchase agreements | $ 1,300,000 |
Maximum [Member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Repurchase agreements term | 90 days |
Minimum [Member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Repurchase agreements term | 30 days |

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- Definition Repurchase agreement term period. + References No definition available. + Details
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- Definition Securities sold under repurchase agreements average balance. + References No definition available. + Details
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- Definition Securities sold under repurchase agreements maximum balance. + References No definition available. + Details
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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 No definition available. + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(i)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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