Securities - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Jun. 30, 2022
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities with a book value	$ 238,721		$ 245,052
Fair Value	$ 206,619		220,906
Percentage of equity securities	10.00%
Repurchase agreements	$ 9,720		9,244
Gross gains from sales of available for sale securities	0	$ 0
Gross losses from sales of available for sale securities	0	$ 0
Investments in debt and marketable equity securities	$ 203,957		$ 209,133
Temporarily impaired debt securities percentage of investment securities portfolio	99.00%		95.00%
Asset Pledged as Collateral with Right [Member]
Debt Securities, Available-for-sale [Line Items]
Carrying value of securities pledged as collateral	$ 129,833		$ 125,209
Maturity Overnight [Member]
Debt Securities, Available-for-sale [Line Items]
Repurchase agreements	9,700
U.S. Government and Federal Agency and Government Sponsored Enterprises (GSEs) [Member]
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities with a book value	9,487		9,488
Fair Value	8,854		9,121
Investments in debt and marketable equity securities	8,854		9,121
Mortgage-backed Securities - GSE Residential [Member]
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities with a book value	204,621		210,367
Fair Value	175,427		188,185
Investments in debt and marketable equity securities	175,427		181,629
Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Investments in debt and marketable equity securities	203,957		209,133
Small Business Administration [Member]
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities with a book value	17,379		17,960
Fair Value	15,233		16,442
Investments in debt and marketable equity securities	$ 15,233		$ 14,983

Debt securities greater than stated percentage of equity securities.

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Temporarily impaired debt securities percentage of investment securities portfolio.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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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.

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