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Fair Value Measurements (Tables) | 12 Months Ended
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Jun. 30, 2025
Fair Value Measurements |
Schedule of fair value assets measured on recurring basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurements at June 30, 2025, Using:
​ | ​ | ​ | ​ | ​ | Quoted Prices in | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Active Markets for | ​ | Significant Other | ​ | Significant
​ | ​ | ​ | ​ | ​ | Identical Assets | ​ | Observable Inputs | ​ | Unobservable Inputs
(dollars in thousands) |  | Fair Value |  | (Level 1) |  | (Level 2) |  | (Level 3)
Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Obligations of state and political subdivisions | ​ | $ | 24,263 | ​ | $ | — | ​ | $ | 24,263 | ​ | $ | —
Corporate obligations | ​ | ​ | 30,642 | ​ | ​ | — | ​ | ​ | 30,642 | ​ | ​ | —
Asset backed securities | ​ | ​ | 42,481 | ​ | ​ | — | ​ | ​ | 42,481 | ​ | ​ | —
Other securities | ​ |  | 3,964 | ​ |  | — | ​ |  | 3,964 | ​ |  | —
MBS and CMOs | ​ |  | 359,494 | ​ |  | — | ​ |  | 359,494 | ​ |  | —
Mortgage servicing rights | ​ | ​ | 2,297 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 2,297
Derivative financial instruments | ​ | ​ | 912 | ​ | ​ | — | ​ | ​ | 912 | ​ | ​ | —
Liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Derivative financial instruments | ​ | ​ | 877 | ​ | ​ | — | ​ | ​ | 877 | ​ | ​ | —
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurements at June 30, 2024, Using:
​ | ​ | ​ | ​ | ​ | Quoted Prices in | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Active Markets for | ​ | Significant Other | ​ | Significant
​ | ​ | ​ | ​ | ​ | Identical Assets | ​ | Observable Inputs | ​ | Unobservable Inputs
(dollars in thousands) |  | Fair Value |  | (Level 1) |  | (Level 2) |  | (Level 3)
Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Obligations of state and political subdivisions | ​ | $ | 27,753 | ​ | $ | — | ​ | $ | 27,753 | ​ | $ | —
Corporate obligations | ​ | ​ | 31,277 | ​ | ​ | — | ​ | ​ | 31,277 | ​ | ​ | —
Asset backed securities | ​ | ​ | 58,679 | ​ | ​ | — | ​ | ​ | 58,679 | ​ | ​ | —
Other securities | ​ |  | 5,333 | ​ |  | — | ​ |  | 5,333 | ​ |  | —
MBS and CMOs | ​ | ​ | 304,861 | ​ | ​ | — | ​ | ​ | 304,861 | ​ | ​ | —
Mortgage servicing rights | ​ | ​ | 2,448 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 2,448
Derivative financial instruments | ​ | ​ | 20 | ​ | ​ | — | ​ | ​ | 20 | ​ | ​ | —
Liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Derivative financial instruments | ​ |  | 15 | ​ |  | — | ​ |  | 15 | ​ |  | —
Schedule of change in fair value of assets measured on a recurring basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30,
(dollars in thousands) |  | 2025 |  | 2024
MSR, beginning |  | $ | 2,448 | ​ | $ | 2,359
Originations |  |  | 171 | ​ |  | 165
Amortization |  |  | (214) | ​ |  | (207)
Change in fair value |  |  | (108) | ​ |  | 131
MSR, ending |  | $ | 2,297 | ​ | $ | 2,448
Schedule of fair value of nonrecurring measurements | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurements at June 30, 2025, Using:
​ | ​ | ​ | ​ | ​ | Quoted Prices in | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Active Markets for | ​ | Significant Other | ​ | Significant
​ | ​ | ​ | ​ | ​ | Identical Assets | ​ | Observable Inputs | ​ | Unobservable Inputs
(dollars in thousands) |  | Fair Value |  | (Level 1) |  | (Level 2) |  | (Level 3)
Foreclosed and repossessed assets held for sale | ​ | $ | 625 | ​ | $ | — | ​ | $ | — | ​ | $ | 625
Collateral dependent loans | ​ | ​ | 24,368 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 24,368
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurements at June 30, 2024, Using:
​ | ​ | ​ | ​ | ​ | Quoted Prices in | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Active Markets for | ​ | Significant Other | ​ | Significant
​ | ​ | ​ | ​ | ​ | Identical Assets | ​ | Observable Inputs | ​ | Unobservable Inputs
(dollars in thousands) |  | Fair Value |  | (Level 1) |  | (Level 2) |  | (Level 3)
Foreclosed and repossessed assets held for sale | ​ | $ | 759 | ​ | $ | — | ​ | $ | — | ​ | $ | 759
Collateral dependent loans | ​ | ​ | 12,994 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 12,994
Schedule of gains and losses recognized on assets measured on a nonrecurring basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(dollars in thousands) | ​ | 2025 | ​ | 2024
Foreclosed and repossessed assets held for sale | ​ | $ | (45) | ​ | $ | 74
Total (gains) losses on assets measured on a non-recurring basis | ​ | $ | (45) | ​ | $ | 74
Schedule of quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ |  | ​ |  | Range |  | ​ |
​ | ​ | Fair value at | ​ | Valuation | ​ | Unobservable | ​ | of | ​ | Weighted-average |
(dollars in thousands) | ​ | June 30, 2025 | ​ | technique | ​ | inputs | ​ | inputs applied | ​ | inputs applied |
Nonrecurring Measurements |  | ​ |  |  |  |  |  |  |  |  |  | ​
Foreclosed and repossessed assets | ​ | $ | 625 |  | Third party appraisal |  | Marketability discount |  | 25.6 -25.6 | % | 25.6 | %
Collateral dependent loans | ​ | ​ | 24,368 |  | Collateral value |  | Marketability discount |  | 4.3 -100.0 | % | 23.9 | %
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ |  | ​ |  | Range |  | ​ |
​ | ​ | Fair value at | ​ | Valuation | ​ | Unobservable | ​ | of | ​ | Weighted-average |
(dollars in thousands) | ​ | June 30, 2024 | ​ | technique | ​ | inputs | ​ | inputs applied | ​ | inputs applied |
Nonrecurring Measurements |  | ​ |  |  |  |  |  |  |  |  |  | ​
Foreclosed and repossessed assets | ​ | $ | 759 |  | Third party appraisal |  | Marketability discount |  | 17.9 - 44.9 | % | 20.3 | %
Collateral dependent loans | ​ | ​ | 12,994 |  | Collateral value |  | Marketability discount |  | 14.5 - 52.3 | % | 43.7 | %
Schedule of financial instruments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2025
​ | ​ | ​ | ​ | ​ | Quoted Prices | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | in Active | ​ | ​ | ​ | ​ | Significant
​ | ​ | ​ | ​ | ​ | Markets for | ​ | Significant Other | ​ | Unobservable
​ | ​ | Carrying | ​ | Identical Assets | ​ | Observable Inputs | ​ | Inputs
(dollars in thousands) |  | Amount |  | (Level 1) |  | (Level 2) |  | (Level 3)
Financial assets |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Cash and cash equivalents | ​ | $ | 192,859 | ​ | $ | 192,859 | ​ | $ | — | ​ | $ | —
Interest-bearing time deposits | ​ |  | 246 | ​ |  | — | ​ |  | 246 | ​ |  | —
Stock in FHLB | ​ |  | 9,361 | ​ |  | — | ​ |  | 9,361 | ​ |  | —
Stock in Federal Reserve Bank of St. Louis | ​ |  | 9,139 | ​ |  | — | ​ |  | 9,139 | ​ |  | —
Loans held for sale | ​ | ​ | 431 | ​ |  | — | ​ |  | 431 | ​ |  | —
Loans receivable, net | ​ |  | 4,048,961 | ​ |  | — | ​ |  | — | ​ |  | 3,976,696
Accrued interest receivable | ​ |  | 26,018 | ​ |  | — | ​ |  | 26,018 | ​ |  | —
Mortgage servicing assets | ​ | ​ | 2,297 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 2,297
Derivative financial instruments | ​ | ​ | 912 | ​ |  | — | ​ |  | 912 | ​ |  | —
Financial liabilities | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Deposits | ​ |  | 4,281,368 | ​ |  | 2,632,774 | ​ |  | — | ​ |  | 1,650,046
Securities sold under agreements to repurchase | ​ | ​ | 15,000 | ​ | ​ | — | ​ | ​ | 15,000 | ​ | ​ | —
Advances from FHLB | ​ |  | 104,052 | ​ |  | — | ​ |  | 104,561 | ​ |  | —
Accrued interest payable | ​ |  | 14,186 | ​ |  | — | ​ |  | 14,186 | ​ |  | —
Subordinated debt | ​ |  | 23,208 | ​ |  | — | ​ |  | — | ​ |  | 21,722
Derivative financial instruments | ​ | ​ | 877 | ​ |  | — | ​ |  | 877 | ​ |  | —
Unrecognized financial instruments (net of contract amount) | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Commitments to originate loans | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Letters of credit | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Lines of credit | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2024
​ | ​ | ​ | ​ | ​ | Quoted Prices | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | in Active | ​ | ​ | ​ | ​ | Significant
​ | ​ | ​ | ​ | ​ | Markets for | ​ | Significant Other | ​ | Unobservable
​ | ​ | Carrying | ​ | Identical Assets | ​ | Observable Inputs | ​ | Inputs
(dollars in thousands) |  | Amount |  | (Level 1) |  | (Level 2) |  | (Level 3)
Financial assets |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Cash and cash equivalents | ​ | $ | 60,904 | ​ | $ | 60,904 | ​ | $ | — | ​ | $ | —
Interest-bearing time deposits | ​ |  | 491 | ​ |  | — | ​ |  | 491 | ​ |  | —
Stock in FHLB | ​ |  | 8,713 | ​ |  | — | ​ |  | 8,713 | ​ |  | —
Stock in Federal Reserve Bank of St. Louis | ​ |  | 9,089 | ​ |  | — | ​ |  | 9,089 | ​ |  | —
Loans receivable, net | ​ |  | 3,797,287 | ​ |  | — | ​ |  | — | ​ |  | 3,639,657
Accrued interest receivable | ​ |  | 23,826 | ​ |  | — | ​ |  | 23,826 | ​ |  | —
Mortgage servicing assets | ​ |  | 2,448 | ​ | ​ | — | ​ |  | — | ​ |  | 2,448
Derivative financial instruments | ​ |  | 20 | ​ |  | — | ​ |  | 20 | ​ |  | —
Financial liabilities | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Deposits | ​ |  | 3,943,059 | ​ |  | 2,607,653 | ​ |  | — | ​ |  | 1,338,215
Securities sold under agreements to repurchase | ​ | ​ | 9,398 | ​ | ​ | — | ​ |  | 9,398 | ​ |  | —
Advances from FHLB | ​ |  | 102,050 | ​ |  | — | ​ |  | 100,468 | ​ |  | —
Accrued interest payable | ​ | ​ | 12,868 | ​ |  | — | ​ |  | 12,868 | ​ |  | —
Subordinated debt | ​ | ​ | 23,156 | ​ | ​ | — | ​ |  | — | ​ |  | 20,576
Derivative financial instruments | ​ | ​ | 15 | ​ | ​ | — | ​ |  | 15 | ​ |  | —
Unrecognized financial instruments (net of contract amount) | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ |  | ​
Commitments to originate loans | ​ | ​ | — | ​ |  | — | ​ |  | — | ​ |  | —
Letters of credit | ​ |  | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Lines of credit | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​

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- 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
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- 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
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- 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
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