Loans, Impaired Loans By Loan Portfolio Class (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Loans [Abstract]
Threshold principal amount of nonaccrual loans evaluated individually for impairment	$ 250
With no related allowance recorded [Abstract]
Recorded investment	1,536	$ 970
Unpaid principal	1,536	970
Average recorded investment	1,238	1,064
Interest income recognized	33	26
With an allowance recorded [Abstract]
Recorded investment	9,235	5,325
Unpaid principal	9,235	5,325
Related allowance	2,347	391
Average recorded investment	7,235	2,796
Interest income recognized	325	189
Total impaired [Abstract]
Recorded investment	10,771	6,295
Unpaid principal	10,771	6,295
Related allowance	2,347	391
Average recorded investment	8,473	3,860
Interest income recognized	358	215
Residential Real Estate [Member] \| Residential Real Estate [Member]
With no related allowance recorded [Abstract]
Recorded investment	990	370
Unpaid principal	990	370
Average recorded investment	669	387
Interest income recognized	17	14
With an allowance recorded [Abstract]
Recorded investment	1,953	723
Unpaid principal	1,953	723
Related allowance	588	103
Average recorded investment	1,713	971
Interest income recognized	53	32
Total impaired [Abstract]
Recorded investment	2,943	1,093
Unpaid principal	2,943	1,093
Related allowance	588	103
Average recorded investment	2,382	1,358
Interest income recognized	70	46
Residential Real Estate [Member] \| Multi-family [Member]
With no related allowance recorded [Abstract]
Recorded investment		0
Unpaid principal		0
Average recorded investment		30
Interest income recognized		0
With an allowance recorded [Abstract]
Recorded investment		0
Unpaid principal		0
Related allowance		0
Average recorded investment		0
Interest income recognized		0
Total impaired [Abstract]
Recorded investment		0
Unpaid principal		0
Related allowance		0
Average recorded investment		30
Interest income recognized		0
Commercial Real Estate [Member] \| Real Estate Mortgage [Member]
With no related allowance recorded [Abstract]
Recorded investment	67	281
Unpaid principal	67	281
Average recorded investment	281	313
Interest income recognized	9	4
With an allowance recorded [Abstract]
Recorded investment	3,698	945
Unpaid principal	3,698	945
Related allowance	1,118	58
Average recorded investment	1,740	236
Interest income recognized	120	4
Total impaired [Abstract]
Recorded investment	3,765	1,226
Unpaid principal	3,765	1,226
Related allowance	1,118	58
Average recorded investment	2,021	549
Interest income recognized	129	8
Commercial Real Estate [Member] \| Construction [Member]
With an allowance recorded [Abstract]
Recorded investment	102	102
Unpaid principal	102	102
Related allowance	1	1
Average recorded investment	102	102
Interest income recognized	0	0
Total impaired [Abstract]
Recorded investment	102	102
Unpaid principal	102	102
Related allowance	1	1
Average recorded investment	102	102
Interest income recognized	0	0
Consumer Loan [Member] \| Home Equity [Member]
With no related allowance recorded [Abstract]
Recorded investment	128	224
Unpaid principal	128	224
Average recorded investment	128	186
Interest income recognized	0	0
With an allowance recorded [Abstract]
Recorded investment	320	321
Unpaid principal	320	321
Related allowance	44	73
Average recorded investment	320	366
Interest income recognized	14	18
Total impaired [Abstract]
Recorded investment	448	545
Unpaid principal	448	545
Related allowance	44	73
Average recorded investment	448	552
Interest income recognized	14	18
Consumer Loan [Member] \| Consumer Installment [Member]
With no related allowance recorded [Abstract]
Recorded investment	5
Unpaid principal	5
Average recorded investment	2
Interest income recognized	1
With an allowance recorded [Abstract]
Related allowance	0
Total impaired [Abstract]
Recorded investment	5
Unpaid principal	5
Related allowance	0
Average recorded investment	2
Interest income recognized	1
Commercial Loans [Member]
With no related allowance recorded [Abstract]
Recorded investment	346	95
Unpaid principal	346	95
Average recorded investment	158	148
Interest income recognized	6	8
With an allowance recorded [Abstract]
Recorded investment	3,162	3,234
Unpaid principal	3,162	3,234
Related allowance	596	156
Average recorded investment	3,360	1,121
Interest income recognized	138	135
Total impaired [Abstract]
Recorded investment	3,508	3,329
Unpaid principal	3,508	3,329
Related allowance	596	156
Average recorded investment	3,518	1,269
Interest income recognized	$ 144	$ 143

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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