Fair Value of Financial Instruments - Carrying value and fair value of financial instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Jun. 30, 2023
Financial assets:
Loans receivable, net	$ 478,257
Loans receivable, net		$ 477,543
Securities held to maturity		99,690
Securities held to maturity	94,871
Financial liabilities:
Certificates of deposit	168,702	159,377
Advances from Federal Home Loan Bank	65,000	34,000
Level 2
Financial assets:
Securities held to maturity		82,313
Securities held to maturity	78,643
Level 3
Financial assets:
Loans receivable, net	446,351
Loans receivable, net		436,636
Financial liabilities:
Certificates of deposit	166,445	155,426
Advances from Federal Home Loan Bank	65,000	34,000
Carrying Value
Financial assets:
Loans receivable, net	478,257
Loans receivable, net		477,543
Securities held to maturity		99,690
Securities held to maturity	94,871
Financial liabilities:
Certificates of deposit	168,702	159,377
Advances from Federal Home Loan Bank	65,000	34,000
Fair Value
Financial assets:
Loans receivable, net	446,351
Loans receivable, net		436,636
Securities held to maturity		82,313
Securities held to maturity	78,643
Financial liabilities:
Certificates of deposit	166,445	155,426
Advances from Federal Home Loan Bank	$ 65,000	$ 34,000

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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Amount excluding accrued interest, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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Amortized cost excluding accrued interest, after allowance for credit loss, of financing receivable. Excludes net investment in lease.

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Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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The aggregate amount of certificate of deposit liabilities.

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