Securities - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities with a book value	$ 231,672	$ 245,052
Fair Value	$ 201,299	220,906
Percentage of equity securities	10.00%
Gross gains from sales of available for sale securities	$ 12	0
Gross losses from sales of available for sale securities	183	275
Tax benefit to net realized gains (losses)	(49)	(78)
Investments in debt and marketable equity securities	$ 194,818	$ 209,133
Temporarily impaired debt securities percentage of investment securities portfolio	97.00%	95.00%
Asset Pledged as Collateral with Right [Member]
Debt Securities, Available-for-sale [Line Items]
Carrying value of securities pledged as collateral	$ 138,022	$ 125,209
Tax benefit to net realized gains (losses)	(49)	(78)
Mortgage-backed securities – GSE residential [Member]
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities with a book value	203,139	210,367
Fair Value	175,726	188,185
Investments in debt and marketable equity securities	172,930	181,629
Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Investments in debt and marketable equity securities	194,818	209,133
Small Business Administration [Member]
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities with a book value	17,629	17,960
Fair Value	15,233	16,442
Investments in debt and marketable equity securities	$ 13,910	$ 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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The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings.

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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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