XML 68 R58.htm IDEA: XBRL DOCUMENT v3.22.2.2

Loans and Allowance for Loan Losses - Credit Risk Profile of Association's Loan Portfolio Based on Rating Category and Payment Activity (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 525,736	$ 520,526
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	513,804	512,746
Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		6,919
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,932	861
One- to four-family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	132,474	117,435
One- to four-family [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	130,950	116,980
One- to four-family [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,524	455
Multi-family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	88,247	104,433
Multi-family [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	87,993	104,170
Multi-family [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	254	263
Home equity lines of credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,987	6,688
Home equity lines of credit [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,987	6,688
Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	41,254	25,345
Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	41,254	25,345
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	167,375	155,884
Commercial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	164,424	154,833
Commercial [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		954
Commercial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,951	97
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	80,418	103,088
Commercial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	73,226	97,078
Commercial [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		5,964
Commercial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	7,192	46
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,981	7,653
Consumer [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,970	7,652
Consumer [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		$ 1
Consumer [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 11

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

+ Details

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

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=iroq_RealEstateLoansOneToFourFamilyIncludingHomeEquityLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=iroq_RealEstateLoansMultiFamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=iroq_RealEstateLoansHomeEquityLinesOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: