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Federal Home Loan Bank Advances and Other Borrowings - Additional Information (Detail) - USD ($)	Sep. 30, 2024	Jun. 30, 2024
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank advances	$ 83,499,000	$ 32,999,000
Mortgage loans secured for Federal Home Loan Bank Advances	414,249,000	408,196,000
Other borrowings	25,175,000	25,250,000
Seven Advances Under The Banks Home Loan Bank Community Small Business Programmed [Member]
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank advances	$ 1,499,000
Federal Home Loan Bank advances interest rate range from	0.00%
Federal Reserve Bank Advances [Member] | Asset Pledged as Collateral [Member]
Federal Home Loan Bank, Advances [Line Items]
Debt Instrument, Face Amount	$ 25,178,000	25,272,000
Federal Reserve Bank Advances [Member] | Debt Instrument, Redemption, Period One [Member] | Asset Pledged as Collateral [Member]
Federal Home Loan Bank, Advances [Line Items]
Debt Instrument Maturity Date	Jan. 16, 2025
Debt Instrument, Interest Rate, Stated Percentage	4.76%
Other borrowings	$ 25,175,000	$ 25,250,000
Maximum [Member]
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank advances interest rate range from	5.29%	5.29%
Minimum [Member]
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank advances interest rate range from	0.00%	0.00%

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Mortgage loans secured for federal home loan banks advances.

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Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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