XML 41 R35.htm IDEA: XBRL DOCUMENT
v3.25.3

Disclosures About Fair Value of Assets (Tables) | 3 Months Ended
--- | ---
Sep. 30, 2025
Fair Value Disclosures [Abstract] |
Fair Value Measurements of Assets Recognized on Recurring Basis | The following table presents the fair value measurements of assets recognized in the accompanying condensed consolidated balance sheets measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fell at September 30, 2025 and June 30, 2025:
|  |  |  |  | Fair Value Measurements Using |
|  | Fair Value |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
September 30, 2025: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Government and federal agency and Government sponsored enterprises (GSE’s) |  | $ | 916 |  |  | $ | — |  |  | $ | 916 |  |  | $ | — |
Mortgage-backed: GSE residential |  |  | 174,345 |  |  |  | — |  |  |  | 174,345 |  |  |  | — |
Small Business Administration |  |  | 12,815 |  |  |  | — |  |  |  | 12,815 |  |  |  | — |
State and political subdivisions |  |  | 1,748 |  |  |  | — |  |  |  | — |  |  |  | 1,748 |
Mortgage servicing rights |  |  | 1,430 |  |  |  | — |  |  |  | — |  |  |  | 1,430 |
|  |  |  |  | Fair Value Measurements Using |
|  | Fair Value |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
June 30, 2025: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Government and federal agency and Government sponsored enterprises (GSE’s) |  |  | 1,812 |  |  |  | — |  |  |  | 1,812 |  |  |  | — |
Mortgage-backed: GSE residential |  |  | 171,079 |  |  |  | — |  |  |  | 171,079 |  |  |  | — |
Small Business Administration |  |  | 13,114 |  |  |  | — |  |  |  | 13,114 |  |  |  | — |
State and political subdivisions |  |  | 1,748 |  |  |  | — |  |  |  | — |  |  |  | 1,748 |
Mortgage servicing rights |  |  | 1,429 |  |  |  | — |  |  |  | — |  |  |  | 1,429 |
Reconciliation of Beginning and Ending Balances of Recurring Fair Value Measurements Recognized in Accompanying Balance Sheet | The following is a reconciliation of the beginning and ending balances of recurring fair value measurements recognized in the accompanying balance sheet using significant unobservable (Level 3) inputs:
|  | Three months ended September 30, 2025 |
|  | Obligations of State and Political Subdivisions |  |  | Mortgage Servicing Rights |  |  | Total |
Beginning balance |  | $ | 1,748 |  |  | $ | 1,429 |  |  | $ | 3,177 |
Transfers into Level 3 |  |  | — |  |  |  | 60 |  |  |  | 60 |
Transfers out of Level 3 |  |  | — |  |  |  | (44 | ) |  |  | (44 | )
Total realized and unrealized gains and losses included in net income |  |  | — |  |  |  | (15 | ) |  |  | (15 | )
Purchases |  |  | — |  |  |  | — |  |  |  | — |
Sales |  |  | — |  |  |  | — |  |  |  | — |
Settlements |  |  | — |  |  |  | — |  |  |  | — |
Ending balance |  | $ | 1,748 |  |  | $ | 1,430 |  |  | $ | 3,178 |
Total gains or losses for the period included in net income attributable to the change in unrealized gains or losses related to assets and liabilities still held at the reporting date |  | $ | — |  |  | $ | (15 | ) |  | $ | (15 | )
|  | Year ended June 30, 2025 |
|  | Obligations of State and Political Subdivisions |  |  | Mortgage Servicing Rights |  |  | Total |
Beginning balance |  | $ | 2,057 |  |  | $ | 1,491 |  |  | $ | 3,548 |
Transfers into Level 3 |  |  | — |  |  |  | 130 |  |  |  | 130 |
Transfers out of Level 3 |  |  | — |  |  |  | (122 | ) |  |  | (122 | )
Total realized and unrealized gains and losses included in net income |  |  | — |  |  |  | (70 | ) |  |  | (70 | )
Purchases |  |  | — |  |  |  | — |  |  |  | — |
Sales |  |  | — |  |  |  | — |  |  |  | — |
Settlements |  |  | (309 | ) |  |  | — |  |  |  | (309 | )
Ending balance |  | $ | 1,748 |  |  | $ | 1,429 |  |  | $ | 3,177 |
Total gains or losses for the period included in net income attributable to the change in unrealized gains or losses related to assets and liabilities still held at the reporting date |  | $ | — |  |  | $ | (70 | ) |  | $ | (70 | )
Fair Value Measurement of Assets Measured on Nonrecurring Basis | The following table presents the fair value measurement of assets measured at fair value on a nonrecurring basis and the level within the fair value hierarchy in which the fair value measurements fall at September 30, 2025 and June 30, 2025:
|  |  |  |  | Fair Value Measurements Using |
|  | Fair Value |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
September 30, 2025: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreclosed assets |  | $ | 40 |  |  | $ | — |  |  | $ | — |  |  | $ | 40 |
June 30, 2025: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreclosed assets |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Losses Recognized on Assets Measured on Non-Recurring Basis | The following table presents losses recognized on assets measured on a non-recurring basis for the three months ended September 30, 2025 and 2024:
|  | Three Months Ended September 30, |
|  | 2025 |  |  | 2024 |
Individually evaluated collateral-dependent loans |  | $ | (122 | ) |  | $ | — |
Foreclosed assets |  | $ | (104 | ) |  | $ | — |
Quantitative Information about Unobservable Inputs Used in Recurring and Nonrecurring Level 3 Fair Value Measurements | The following tables present quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements at September 30, 2025 and June 30, 2025.
|  | Fair Value at September 30, 2025 |  |  | Valuation Technique |  | Unobservable Inputs |  | Range (Weighted Average)
Mortgage servicing rights |  | $ | 1,430 |  |  | Discounted cash flow |  | Discount rate Constant prepayment rate Probability of default |  | 9.5% (9.5%) 5.0% - 11.1% (10.3%) 0.07% - 0.12% (0.12%)
State and political subdivision |  |  | 1,748 |  |  | Discounted cash flow |  | Maturity/Call Date Weighted average coupon Marketability yield adjustment |  | 1 month – 6 years 2.97% - 3.08% (3.04%) 1.0% - 2.0% (1.6%)
Foreclosed assets |  |  | 40 |  |  | Market comparable properties |  | Comparability adjustments (%) |  | 0% (0%)
|  | Fair Value at June 30, 2025 |  |  | Valuation Technique |  | Unobservable Inputs |  | Range (Weighted Average)
Mortgage servicing rights |  | $ | 1,429 |  |  | Discounted cash flow |  | Discount rate Constant prepayment rate Probability of default |  | 9.5% (9.5%) 4.9% - 9.8% (9.2%) 0.07% - 0.12% (0.12%)
State and political subdivision |  |  | 1,748 |  |  | Discounted cash flow |  | Maturity/Call Date Weighted average coupon Marketability yield adjustment |  | 1 month – 6 years 2.97% - 3.08% (3.04%) 1.0% - 2.0% (1.6%)
Estimated Fair Values of Financial Instruments and Level within Fair Value Hierarchy in which Fair Value Measurements Fall | The following tables present estimated fair values of the Company’s financial instruments and the level within the fair value hierarchy in which the fair value measurements fell at September 30, 2025 and June 30, 2025.
|  | Carrying Amount |  |  | Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
September 30, 2025: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 8,027 |  |  | $ | 8,027 |  |  | $ | — |  |  | $ | — |
Interest-bearing time deposits in banks |  |  | 250 |  |  |  | 250 |  |  |  | — |  |  |  | — |
Loans, net of allowance for credit losses |  |  | 619,282 |  |  |  | — |  |  |  | — |  |  |  | 598,392 |
Federal Home Loan Bank stock |  |  | 4,844 |  |  |  | — |  |  |  | 4,844 |  |  |  | — |
Accrued interest receivable |  |  | 3,693 |  |  |  | — |  |  |  | 3,693 |  |  |  | — |
Financial liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposits |  |  | 680,264 |  |  |  | — |  |  |  | 361,787 |  |  |  | 318,241 |
Repurchase agreements |  |  | 18,130 |  |  |  | — |  |  |  | 18,130 |  |  |  | — |
Federal Home Loan Bank advances |  |  | 69,124 |  |  |  | — |  |  |  | 68,007 |  |  |  | — |
Advances from borrowers for taxes and insurance |  |  | 681 |  |  |  | — |  |  |  | 681 |  |  |  | — |
Accrued interest payable |  |  | 1,812 |  |  |  | — |  |  |  | 1,812 |  |  |  | — |
Unrecognized financial instruments (net of contract amount) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Commitments to originate loans |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
|  | Carrying Amount |  |  | Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
June 30, 2025: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 20,092 |  |  | $ | 20,092 |  |  | $ | — |  |  | $ | — |
Interest-bearing time deposits in banks |  |  | 250 |  |  |  | 250 |  |  |  | — |  |  |  | — |
Loans, net of allowance for credit losses |  |  | 633,603 |  |  |  | — |  |  |  | — |  |  |  | 610,986 |
Federal Home Loan Bank stock |  |  | 5,174 |  |  |  | — |  |  |  | 5,174 |  |  |  | — |
Accrued interest receivable |  |  | 3,545 |  |  |  | — |  |  |  | 3,545 |  |  |  | — |
Financial liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposits |  |  | 721,258 |  |  |  | — |  |  |  | 408,173 |  |  |  | 312,719 |
Repurchase agreements |  |  | 18,795 |  |  |  | — |  |  |  | 18,795 |  |  |  | — |
Federal Home Loan Bank advances |  |  | 54,124 |  |  |  | — |  |  |  | 52,892 |  |  |  | — |
Advances from borrowers for taxes and insurance |  |  | 972 |  |  |  | — |  |  |  | 972 |  |  |  | — |
Accrued interest payable |  |  | 1,861 |  |  |  | — |  |  |  | 1,861 |  |  |  | — |
Unrecognized financial instruments (net of contract amount) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments to originate loans |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |

X
- Definition Fair value assets measured on recurring basis unobservable input quantitative information. + References No definition available. + Details
Name: | iroq_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputQuantitativeInformationTableTextBlock
Namespace Prefix: | iroq_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Losses recognized on assets measured on a non-recurring basis. + References No definition available. + Details
Name: | iroq_LossesRecognizedOnAssetsMeasuredOnNonRecurringBasisTableTextBlock
Namespace Prefix: | iroq_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name Accounting Standards Codification -Section 55 -Paragraph 10 -SubTopic 10 -Topic 825 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482881/825-10-55-10 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-13 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482881/825-10-55-12 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-12 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 + Details
Name: | us-gaap_FairValueByBalanceSheetGroupingTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration