Loans Receivable, Troubled Debt Restructurings (Details) $ in Thousands	9 Months Ended
Mar. 31, 2022 USD ($) Loan	Jun. 30, 2021 USD ($)
Troubled Debt Restructurings [Abstract]
Number of loans in process of foreclosure \| Loan	1
Commitments to loan additional funds to borrowers whose loans were previously in non-accrual status	$ 0
Number of trouble debt restructuring that has subsequently defaulted in last 12 months \| Loan	0
One-to-Four-Family Residential [Member]
Troubled Debt Restructurings [Abstract]
Mortgage loans in process of foreclosure	$ 208
Real Estate Loans [Member] \| Commercial Real Estate [Member]
Troubled Debt Restructurings [Abstract]
Total TDRs	2,281	$ 837
Real Estate Loans [Member] \| Commercial Real Estate [Member] \| Nonaccrual [Member]
Troubled Debt Restructurings [Abstract]
Total TDRs	0	837
Real Estate Loans [Member] \| Commercial Real Estate [Member] \| Current [Member]
Troubled Debt Restructurings [Abstract]
Total TDRs	2,281	0
Real Estate Loans [Member] \| Commercial Real Estate [Member] \| Past Due Greater than 30 Days [Member]
Troubled Debt Restructurings [Abstract]
Total TDRs	0	$ 837
Real Estate Loans [Member] \| One-to-Four-Family Residential [Member]
Troubled Debt Restructurings [Abstract]
Total TDRs	10
Real Estate Loans [Member] \| One-to-Four-Family Residential [Member] \| Nonaccrual [Member]
Troubled Debt Restructurings [Abstract]
Total TDRs	10
Real Estate Loans [Member] \| One-to-Four-Family Residential [Member] \| Current [Member]
Troubled Debt Restructurings [Abstract]
Total TDRs	0
Real Estate Loans [Member] \| One-to-Four-Family Residential [Member] \| Past Due Greater than 30 Days [Member]
Troubled Debt Restructurings [Abstract]
Total TDRs	$ 0

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- Definition

Number of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

+ References

No definition available.

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- Definition

Amount of financing receivable modified as troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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- Definition

Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18794-111554

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- Definition

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL49126937-111524

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