Loans and Allowance for Loan Losses, Loan Balances by Internal Credit Quality Indicator (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 31, 2022 USD ($) Loan	Dec. 31, 2022 USD ($) Loan	Jun. 30, 2022 USD ($)
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	$ 1,390,055	$ 1,390,055	$ 1,251,987
Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	1,345,136	1,345,136	1,199,933
Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	10,548	10,548	14,893
Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	34,371	34,371	37,161
Doubtful [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	0	0
Loss [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	0	0
Residential Real Estate [Member] | Real Estate [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	371,646	371,646	360,824
Residential Real Estate [Member] | Real Estate [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	366,020	366,020	355,474
Residential Real Estate [Member] | Real Estate [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	172	172	28
Residential Real Estate [Member] | Real Estate [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	5,454	5,454	5,322
Residential Real Estate [Member] | Construction and Land [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	20,334	20,334	15,298
Residential Real Estate [Member] | Construction and Land [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	20,334	20,334	15,297
Residential Real Estate [Member] | Construction and Land [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	0	0
Residential Real Estate [Member] | Construction and Land [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	0	1
Residential Real Estate [Member] | Multi-family [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	67,733	67,733	63,822
Residential Real Estate [Member] | Multi-family [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	67,644	67,644	63,730
Residential Real Estate [Member] | Multi-family [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	89	89	92
Residential Real Estate [Member] | Multi-family [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	$ 0	0	0
Commercial Real Estate [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Number of loan relationships downgraded | Loan	1
Commercial Real Estate [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Number of loans paid off | Loan	1
Number of loan relationships downgraded | Loan	1
Commercial Real Estate [Member] | Real Estate [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	$ 705,649	705,649	595,635
Commercial Real Estate [Member] | Real Estate [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	673,200	673,200	555,451
Commercial Real Estate [Member] | Real Estate [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	7,055	7,055	13,777
Commercial Real Estate [Member] | Real Estate [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	25,394	25,394	26,407
Commercial Real Estate [Member] | Construction [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	87,267	87,267	83,748
Commercial Real Estate [Member] | Construction [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	87,267	87,267	83,748
Commercial Real Estate [Member] | Construction [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	0	0
Commercial Real Estate [Member] | Construction [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	0	0
Consumer Loan [Member] | Home Equity [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	20,669	20,669	17,877
Consumer Loan [Member] | Home Equity [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	20,484	20,484	17,369
Consumer Loan [Member] | Home Equity [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	0	0
Consumer Loan [Member] | Home Equity [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	185	185	508
Consumer Loan [Member] | Consumer Installment [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	4,588	4,588	4,512
Consumer Loan [Member] | Consumer Installment [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	4,574	4,574	4,500
Consumer Loan [Member] | Consumer Installment [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	0	0
Consumer Loan [Member] | Consumer Installment [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	14	14	12
Commercial Loans [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	112,169	112,169	110,271
Commercial Loans [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	105,613	$ 105,613	104,364
Commercial Loans [Member] | Pass [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Number of loans upgraded | Loan		1
Commercial Loans [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	3,232	$ 3,232	996
Number of loans upgraded | Loan		1
Commercial Loans [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	$ 3,324	$ 3,324	$ 4,911
Number of loans paid off | Loan	1
Number of loan relationships downgraded | Loan	1