Securities - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities with a book value	$ 245,052	$ 186,589
Fair Value	$ 220,906	189,891
Percentage of equity securities	10.00%
Gross gains from sales of available for sale securities	$ 0	327
Gross losses from sales of available for sale securities	275	7
Tax benefit to net realized gains (losses)	(78)	92
Investments in debt and marketable equity securities	$ 209,133	$ 85,118
Temporarily impaired debt securities percentage of investment securities portfolio	95.00%	45.00%
Asset Pledged as Collateral with Right [Member]
Debt Securities, Available-for-sale [Line Items]
Carrying value of securities pledged as collateral	$ 125,209	$ 96,429
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	9,488	7,522
Fair Value	9,121	8,039
Investments in debt and marketable equity securities	9,121
Mortgage-backed Securities - GSE Residential [Member]
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities with a book value	210,367	167,711
Fair Value	188,185	170,415
Investments in debt and marketable equity securities	181,629	79,162
Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Investments in debt and marketable equity securities	209,133	85,118
Small Business Administration [Member]
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities with a book value	17,960	9,115
Fair Value	16,442	9,190
Investments in debt and marketable equity securities	$ 14,983	$ 5,956

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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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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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.

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