Loans and Allowance for Loan Losses, Loan Balances by Internal Credit Quality Indicator (Details) $ in Thousands	6 Months Ended
	Dec. 31, 2021 USD ($) Segment	Jun. 30, 2021 USD ($)
Loan Balances by Internal Credit Quality Indicator [Abstract]
Number of segments within loan portfolio | Segment	4
Total gross loans	$ 1,145,196	$ 1,108,408
Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	1,097,815	1,058,741
Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	8,070	16,685
Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	39,311	32,982
Doubtful [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	0
Loss [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	$ 0	0
Residential Real Estate [Member] | Maximum [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Loan-to-value ratio	85.00%
Residential Real Estate [Member] | Residential Real Estate [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	$ 334,385	325,167
Residential Real Estate [Member] | Residential Real Estate [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	331,056	321,826
Residential Real Estate [Member] | Residential Real Estate [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	32	88
Residential Real Estate [Member] | Residential Real Estate [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	3,297	3,253
Residential Real Estate [Member] | Construction and Land [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	13,884	10,185
Residential Real Estate [Member] | Construction and Land [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	13,884	10,185
Residential Real Estate [Member] | Construction and Land [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	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
Residential Real Estate [Member] | Multi-family [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	44,450	41,951
Residential Real Estate [Member] | Multi-family [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	44,355	41,589
Residential Real Estate [Member] | Multi-family [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	95	0
Residential Real Estate [Member] | Multi-family [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	362
Commercial Real Estate [Member] | Real Estate [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	534,244	472,887
Commercial Real Estate [Member] | Real Estate [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	497,947	441,004
Commercial Real Estate [Member] | Real Estate [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	6,801	9,690
Commercial Real Estate [Member] | Real Estate [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	29,496	22,193
Commercial Real Estate [Member] | Construction [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	75,417	62,763
Commercial Real Estate [Member] | Construction [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	74,817	55,819
Commercial Real Estate [Member] | Construction [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	5,944
Commercial Real Estate [Member] | Construction [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	600	1,000
Consumer Loan [Member] | Home Equity [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	18,803	18,285
Consumer Loan [Member] | Home Equity [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	18,344	17,727
Consumer Loan [Member] | Home Equity [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	0
Consumer Loan [Member] | Home Equity [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	459	558
Consumer Loan [Member] | Consumer Installment [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	4,669	4,942
Consumer Loan [Member] | Consumer Installment [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	4,669	4,942
Consumer Loan [Member] | Consumer Installment [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	0
Consumer Loan [Member] | Consumer Installment [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	0	0
Commercial Loans [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	119,344	172,228
Commercial Loans [Member] | Performing [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	112,743	165,649
Commercial Loans [Member] | Special Mention [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	1,142	963
Commercial Loans [Member] | Substandard [Member]
Loan Balances by Internal Credit Quality Indicator [Abstract]
Total gross loans	$ 5,459	$ 5,616