Fair Value of Financial Instruments - Carrying value and fair value of financial instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022
Financial assets:
Loans receivable, net	$ 472,499	$ 475,511
Held to maturity securities, Amortized cost	104,376	102,135
Financial liabilities:
Certificates of deposit	129,366	131,361
Advances from Federal Home Loan Bank	55,000	65,000
Level 2
Financial assets:
Held to maturity securities, Amortized cost	84,997	88,321
Level 3
Financial assets:
Loans receivable, net	444,984	468,485
Financial liabilities:
Certificates of deposit	127,158	130,974
Advances from Federal Home Loan Bank	55,000	65,000
Carrying Value
Financial assets:
Loans receivable, net	472,499	475,511
Held to maturity securities, Amortized cost	104,376	102,135
Financial liabilities:
Certificates of deposit	129,366	131,361
Advances from Federal Home Loan Bank	55,000	65,000
Fair Value
Financial assets:
Loans receivable, net	444,984	468,485
Held to maturity securities, Amortized cost	84,997	88,321
Financial liabilities:
Certificates of deposit	127,158	130,974
Advances from Federal Home Loan Bank	$ 55,000	$ 65,000

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, 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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