Loans, Impaired Loans By Loan Portfolio Class (Details) - USD ($)	12 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Loans [Abstract]
Threshold principal amount of nonaccrual loans evaluated individually for impairment	$ 250,000
With no related allowance recorded [Abstract]
Recorded investment	2,872,000	$ 1,536,000
Unpaid principal	2,872,000	1,536,000
Average recorded investment	1,972,000	1,238,000
Interest income recognized	70,000	33,000
With an allowance recorded [Abstract]
Recorded investment	7,435,000	9,235,000
Unpaid principal	7,435,000	9,235,000
Related allowance	2,013,000	2,347,000
Average recorded investment	8,239,000	7,235,000
Interest income recognized	257,000	325,000
Total impaired [Abstract]
Recorded investment	10,307,000	10,771,000
Unpaid principal	10,307,000	10,771,000
Related allowance	2,013,000	2,347,000
Average recorded investment	10,211,000	8,473,000
Interest income recognized	327,000	358,000
Residential Real Estate [Member] \| Residential Real Estate [Member]
With no related allowance recorded [Abstract]
Recorded investment	1,020,000	990,000
Unpaid principal	1,020,000	990,000
Average recorded investment	876,000	669,000
Interest income recognized	5,000	17,000
With an allowance recorded [Abstract]
Recorded investment	2,086,000	1,953,000
Unpaid principal	2,086,000	1,953,000
Related allowance	597,000	588,000
Average recorded investment	2,241,000	1,713,000
Interest income recognized	19,000	53,000
Total impaired [Abstract]
Recorded investment	3,106,000	2,943,000
Unpaid principal	3,106,000	2,943,000
Related allowance	597,000	588,000
Average recorded investment	3,117,000	2,382,000
Interest income recognized	24,000	70,000
Commercial Real Estate [Member] \| Real Estate Mortgage [Member]
With no related allowance recorded [Abstract]
Recorded investment	1,518,000	67,000
Unpaid principal	1,518,000	67,000
Average recorded investment	678,000	281,000
Interest income recognized	48,000	9,000
With an allowance recorded [Abstract]
Recorded investment	3,777,000	3,698,000
Unpaid principal	3,777,000	3,698,000
Related allowance	245,000	1,118,000
Average recorded investment	3,666,000	1,740,000
Interest income recognized	197,000	120,000
Total impaired [Abstract]
Recorded investment	5,295,000	3,765,000
Unpaid principal	5,295,000	3,765,000
Related allowance	245,000	1,118,000
Average recorded investment	4,344,000	2,021,000
Interest income recognized	245,000	129,000
Commercial Real Estate [Member] \| Construction [Member]
With an allowance recorded [Abstract]
Recorded investment		102,000
Unpaid principal		102,000
Related allowance		1,000
Average recorded investment		102,000
Interest income recognized		0
Total impaired [Abstract]
Recorded investment		102,000
Unpaid principal		102,000
Related allowance		1,000
Average recorded investment		102,000
Interest income recognized		0
Consumer Loan [Member] \| Home Equity [Member]
With no related allowance recorded [Abstract]
Recorded investment	0	128,000
Unpaid principal	0	128,000
Average recorded investment	75,000	128,000
Interest income recognized	0	0
With an allowance recorded [Abstract]
Recorded investment	0	320,000
Unpaid principal	0	320,000
Related allowance	0	44,000
Average recorded investment	80,000	320,000
Interest income recognized	4,000	14,000
Total impaired [Abstract]
Recorded investment	0	448,000
Unpaid principal	0	448,000
Related allowance	0	44,000
Average recorded investment	155,000	448,000
Interest income recognized	4,000	14,000
Consumer Loan [Member] \| Consumer Installment [Member]
With no related allowance recorded [Abstract]
Recorded investment	0	5,000
Unpaid principal	0	5,000
Average recorded investment	3,000	2,000
Interest income recognized	1,000	1,000
With an allowance recorded [Abstract]
Related allowance	0	0
Total impaired [Abstract]
Recorded investment	0	5,000
Unpaid principal	0	5,000
Related allowance	0	0
Average recorded investment	3,000	2,000
Interest income recognized	1,000	1,000
Commercial Loans [Member]
With no related allowance recorded [Abstract]
Recorded investment	334,000	346,000
Unpaid principal	334,000	346,000
Average recorded investment	340,000	158,000
Interest income recognized	16,000	6,000
With an allowance recorded [Abstract]
Recorded investment	1,572,000	3,162,000
Unpaid principal	1,572,000	3,162,000
Related allowance	1,171,000	596,000
Average recorded investment	2,252,000	3,360,000
Interest income recognized	37,000	138,000
Total impaired [Abstract]
Recorded investment	1,906,000	3,508,000
Unpaid principal	1,906,000	3,508,000
Related allowance	1,171,000	596,000
Average recorded investment	2,592,000	3,518,000
Interest income recognized	$ 53,000	$ 144,000

The threshold principal amount of nonaccrual loans evaluated individually for impairment.

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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-Name Accounting Standards Codification
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-Section 50
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Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Amount of allowance for credit losses related to recorded investment.

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Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

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Amount of interest income, recognized on cash basis, on financing receivables, for which there is no related allowance for credit losses and are recognized as impaired.

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