Loans and Allowance for Loan Losses, Impaired Loans By Loan Portfolio Class (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2022
Loans and Allowance for Loan Losses [Abstract]
Threshold principal amount of nonaccrual loans evaluated individually for impairment	$ 250		$ 250
With no related allowance recorded [Abstract]
Recorded investment	2,637		2,637		$ 1,536
Unpaid principal	2,637		2,637		1,536
Average recorded investment	1,915	$ 1,271	1,709	$ 1,225
Interest income recognized	21	8	40	28
With an allowance recorded [Abstract]
Recorded investment	7,161		7,161		9,235
Unpaid principal	7,161		7,161		9,235
Related allowance	1,818		1,818		2,347
Average recorded investment	8,111	7,781	8,503	6,469
Interest income recognized	60	118	171	262
Total impaired [Abstract]
Recorded investment	9,798		9,798		10,771
Unpaid principal	9,798		9,798		10,771
Related allowance	1,818		1,818		2,347
Average recorded investment	10,026	9,052	10,212	7,694
Interest income recognized	81	126	211	290
Residential Real Estate [Member] \| Real Estate [Member]
With no related allowance recorded [Abstract]
Recorded investment	768		768		990
Unpaid principal	768		768		990
Average recorded investment	775	846	895	577
Interest income recognized	0	3	2	13
With an allowance recorded [Abstract]
Recorded investment	2,415		2,415		1,953
Unpaid principal	2,415		2,415		1,953
Related allowance	595		595		588
Average recorded investment	2,421	2,159	2,221	1,612
Interest income recognized	7	10	14	43
Total impaired [Abstract]
Recorded investment	3,183		3,183		2,943
Unpaid principal	3,183		3,183		2,943
Related allowance	595		595		588
Average recorded investment	3,196	3,005	3,116	2,189
Interest income recognized	7	13	16	56
Commercial Real Estate [Member] \| Real Estate [Member]
With no related allowance recorded [Abstract]
Recorded investment	1,528		1,528		67
Unpaid principal	1,528		1,528		67
Average recorded investment	755	71	369	351
Interest income recognized	17	1	25	9
With an allowance recorded [Abstract]
Recorded investment	3,168		3,168		3,698
Unpaid principal	3,168		3,168		3,698
Related allowance	459		459		1,118
Average recorded investment	3,851	1,864	3,696	1,085
Interest income recognized	48	75	121	93
Total impaired [Abstract]
Recorded investment	4,696		4,696		3,765
Unpaid principal	4,696		4,696		3,765
Related allowance	459		459		1,118
Average recorded investment	4,606	1,935	4,065	1,436
Interest income recognized	65	76	146	102
Commercial Real Estate [Member] \| Construction [Member]
With an allowance recorded [Abstract]
Recorded investment					102
Unpaid principal					102
Related allowance					1
Average recorded investment		102		102
Interest income recognized		0		0
Total impaired [Abstract]
Recorded investment					102
Unpaid principal					102
Related allowance					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	0		0		128
Unpaid principal	0		0		128
Average recorded investment	43	128	100	128
Interest income recognized	0	0	0	0
With an allowance recorded [Abstract]
Recorded investment	0		0		320
Unpaid principal	0		0		320
Related allowance	0		0		44
Average recorded investment	0	320	107	321
Interest income recognized	0	4	4	10
Total impaired [Abstract]
Recorded investment	0		0		448
Unpaid principal	0		0		448
Related allowance	0		0		44
Average recorded investment	43	448	207	449
Interest income recognized	0	4	4	10
Consumer Loan [Member] \| Consumer Installment [Member]
With no related allowance recorded [Abstract]
Recorded investment	4		4		5
Unpaid principal	4		4		5
Average recorded investment	4	2	4	1
Interest income recognized	0	1	1	1
With an allowance recorded [Abstract]
Related allowance	0		0		0
Total impaired [Abstract]
Recorded investment	4		4		5
Unpaid principal	4		4		5
Related allowance	0		0		0
Average recorded investment	4	2	4	1
Interest income recognized	0	1	1	1
Commercial Loans [Member]
With no related allowance recorded [Abstract]
Recorded investment	337		337		346
Unpaid principal	337		337		346
Average recorded investment	338	224	341	168
Interest income recognized	4	3	12	5
With an allowance recorded [Abstract]
Recorded investment	1,578		1,578		3,162
Unpaid principal	1,578		1,578		3,162
Related allowance	764		764		596
Average recorded investment	1,839	3,336	2,479	3,349
Interest income recognized	5	29	32	116
Total impaired [Abstract]
Recorded investment	1,915		1,915		3,508
Unpaid principal	1,915		1,915		3,508
Related allowance	764		764		$ 596
Average recorded investment	2,177	3,560	2,820	3,517
Interest income recognized	$ 9	$ 32	$ 44	$ 121

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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