Deposits - Summary of deposits (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Deposits
Checking deposits - noninterest-bearing	$ 95,627	$ 103,006
Checking deposits - interest-bearing	254,624	302,872
Savings deposits	238,878	290,204
Money market deposits	25,324	33,551
Total deposits	$ 888,348	$ 950,571
Weighted average interest rate on deposits	1.29%	0.73%
Uninsured deposits	$ 122,700	$ 140,100
$250 and under
Deposits
Time deposits	226,110	192,147
Brokered certificates of deposit	131,800	106,400
Over $250
Deposits
Time deposits	$ 47,785	$ 28,791
Minimum [Member]
Deposits
Checking deposits - interest-bearing, Interest Rate	0.00%	0.00%
Savings deposits, Interest Rate	0.00%	0.00%
Money market deposits, Interest Rate	0.00%	0.00%
Minimum [Member] \| $250 and under
Deposits
Time deposits, Interest Rate	0.00%	0.00%
Minimum [Member] \| Over $250
Deposits
Time deposits, Interest Rate	0.10%	0.10%
Maximum [Member]
Deposits
Checking deposits - interest-bearing, Interest Rate	0.20%	0.20%
Savings deposits, Interest Rate	4.64%	0.70%
Money market deposits, Interest Rate	4.64%	2.00%
Maximum [Member] \| $250 and under
Deposits
Time deposits, Interest Rate	5.35%	5.25%
Maximum [Member] \| Over $250
Deposits
Time deposits, Interest Rate	5.12%	5.35%

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- Definition

Interest Rate, Domestic Deposit, Checking

+ References

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Interest Rate, Domestic Deposit, Time Deposit

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- Definition

Amount of uninsured deposit liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1406
-Paragraph e
-Publisher SEC

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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Amount of interest-bearing domestic certificate of deposit liabilities.

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Amount of interest-bearing domestic checking deposit liabilities.

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Amount of interest-bearing domestic money market demand account deposit liabilities.

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Amount of interest-bearing domestic savings deposit liabilities. Saving deposits bear interest and have no stated maturity.

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Amount of interest-bearing domestic time deposits. Time deposits bear interest for a fixed, stated period of time and include certificate of deposits and individual retirement accounts.

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Amount of noninterest-bearing domestic checking deposit liabilities.

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Weighted average interest rate calculated at point in time for domestic deposit liability.

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