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Disclosures about Fair Value of Assets and Liabilities - Estimated Fair Values of Financial Instruments and Level within Fair Value Hierarchy in which Fair Value Measurements Fall (Detail) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018
Financial assets
Cash and cash equivalents	$ 6,875	$ 59,600	$ 6,558	$ 4,754
Interest-bearing time deposits in banks	3,000	3,000
Loans, net of allowance for loan losses	494,517	487,774
Federal Home Loan Bank stock	2,408	1,174
Accrued interest receivable	2,025	2,142
Financial liabilities
Deposits	533,130	607,023
Repurchase agreements	3,404	2,015
Federal Home Loan Bank advances	53,500	24,000
Advances from borrowers for taxes and insurance	1,272	747
Accrued interest payable	935	801
Unrecognized Financial Instruments	0
Unrecognized financial instruments (net of contract amount)
Commitments to originate loans	0
Lines of credit	5,000
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets
Cash and cash equivalents	6,875	59,600
Interest-bearing time deposits in banks	3,000	3,000
Loans, net of allowance for loan losses	0
Federal Home Loan Bank stock	0
Accrued interest receivable	0
Financial liabilities
Deposits	0
Repurchase agreements	0
Federal Home Loan Bank advances	0
Accrued interest payable	0
Unrecognized Financial Instruments	0
Unrecognized financial instruments (net of contract amount)
Commitments to originate loans	0
Lines of credit	5,000
Significant Other Observable Inputs (Level 2) [Member]
Financial assets
Cash and cash equivalents	0
Interest-bearing time deposits in banks	0
Loans, net of allowance for loan losses	0
Federal Home Loan Bank stock	2,408	1,174
Accrued interest receivable	2,025	2,142
Financial liabilities
Deposits	241,837	276,738
Repurchase agreements	3,404	2,015
Federal Home Loan Bank advances	54,533	24,419
Advances from borrowers for taxes and insurance	1,272	747
Accrued interest payable	935	801
Unrecognized Financial Instruments	0
Unrecognized financial instruments (net of contract amount)
Commitments to originate loans	0
Lines of credit	0
Significant Unobservable Inputs (Level 3) [Member]
Financial assets
Cash and cash equivalents	0
Interest-bearing time deposits in banks	0
Loans, net of allowance for loan losses	498,172	480,479
Federal Home Loan Bank stock	0
Accrued interest receivable	0
Financial liabilities
Deposits	293,137	$ 331,865
Repurchase agreements	0
Federal Home Loan Bank advances	0
Accrued interest payable	0
Unrecognized Financial Instruments	0
Unrecognized financial instruments (net of contract amount)
Commitments to originate loans	0
Lines of credit	$ 0

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Commitments to originate loans.

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Interest-bearing time deposits in banks.

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Interest bearing time deposits in banks.

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Unrecognized financial instruments.

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Unrecognized financial instruments (net of contract amount).

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- Definition

Carrying amount of accumulated prepayments received by financial institutions from borrowers for taxes (for example, property taxes) and insurance (for example, property and catastrophe) which will periodically be remitted to the appropriate governmental agency or vendor on behalf of the borrower.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
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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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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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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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Carrying value, as of the balance sheet date, of securities sold under agreements to repurchase where the transferor maintains effective control over the assets, accounting for them as secured debt.

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