Loans and Allowance for Credit Losses - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	$ 4,118	$ 5,868
Residential Real Estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	1,647	3,235
Construction Real Estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans		30
Commercial Real Estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	2,259	1,914
Consumer loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	73	100
Commercial loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	$ 139	$ 589

Amount of financing receivable on nonaccrual status.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (3)

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (2)

Name:	us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant