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Fair Value Measurements (Tables) | 3 Months Ended
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Sep. 30, 2025
Fair Value Measurements |
Schedule of fair value assets measured on recurring basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurements at September 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 | ​ | $ | 24,884 | ​ | $ | — | ​ | $ | 24,884 | ​ | $ | —
Corporate obligations | ​ | ​ | 29,365 | ​ | ​ | — | ​ | ​ | 29,365 | ​ | ​ | —
Asset backed securities | ​ | ​ | 38,761 | ​ | ​ | — | ​ | ​ | 38,761 | ​ | ​ | —
Other securities | ​ |  | 3,695 | ​ |  | — | ​ |  | 3,695 | ​ |  | —
MBS and CMOs | ​ |  | 357,150 | ​ |  | — | ​ |  | 357,150 | ​ |  | —
Mortgage servicing rights | ​ | ​ | 2,299 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 2,299
Derivative financial instruments | ​ | ​ | 1,214 | ​ | ​ | — | ​ | ​ | 1,214 | ​ | ​ | —
Liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Derivative financial instruments | ​ | ​ | 1,168 | ​ | ​ | — | ​ | ​ | 1,168 | ​ | ​ | —
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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 | ​ |  | —
Schedule of change in fair value of assets measured on a recurring basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30,
(dollars in thousands) |  | 2025 |  | 2024
MSR, beginning |  | $ | 2,297 | ​ | $ | 2,448
Originations |  |  | 50 | ​ |  | 34
Amortization |  |  | (48) | ​ |  | (63)
Change in fair value |  |  | — | ​ |  | —
MSR, ending |  | $ | 2,299 | ​ | $ | 2,419
Schedule of fair value of nonrecurring measurements | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurements at September 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 | ​ | $ | 1,006 | ​ | $ | — | ​ | $ | — | ​ | $ | 1,006
Collateral dependent loans | ​ | ​ | 20,349 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 20,349
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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
Schedule of gains and losses recognized on assets measured on a nonrecurring basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | For the three months ended | ​
(dollars in thousands) | ​ | September 30, 2025 | ​ | September 30, 2024 | ​
Foreclosed and repossessed assets held for sale | ​ | $ | 159 | ​ | $ | 23 | ​
Total losses on assets measured on a non-recurring basis | ​ | $ | 159 | ​ | $ | 23 | ​
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) | ​ | September 30, 2025 | ​ | technique | ​ | inputs | ​ | inputs applied | ​ | inputs applied |
Nonrecurring Measurements |  | ​ |  |  |  |  |  |  |  |  |  | ​
Foreclosed and repossessed assets | ​ | $ | 1,006 |  | Third party appraisal |  | Marketability discount |  | 8.0 -8.2 | % | 8.0 | %
Collateral dependent loans | ​ | ​ | 20,349 |  | Collateral value |  | Marketability discount |  | 14.9 -100.0 | % | 22.1 | %
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ |  | ​ |  | 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 | %
Schedule of financial instruments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 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 | ​ | $ | 124,111 | ​ | $ | 124,111 | ​ | $ | — | ​ | $ | —
Interest-bearing time deposits | ​ |  | 247 | ​ |  | — | ​ |  | 247 | ​ |  | —
Stock in FHLB | ​ |  | 9,347 | ​ |  | — | ​ |  | 9,347 | ​ |  | —
Stock in Federal Reserve Bank of St. Louis | ​ |  | 9,142 | ​ |  | — | ​ |  | 9,142 | ​ |  | —
Loans held for sale | ​ | ​ | 277 | ​ |  | — | ​ |  | 277 | ​ |  | —
Loans receivable, net | ​ |  | 4,139,662 | ​ |  | — | ​ |  | — | ​ |  | 4,090,982
Accrued interest receivable | ​ |  | 30,591 | ​ |  | — | ​ |  | 30,591 | ​ |  | —
Financial liabilities | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Deposits | ​ |  | 4,280,490 | ​ |  | 2,672,492 | ​ |  | — | ​ |  | 1,612,565
Securities sold under agreements to repurchase | ​ | ​ | 20,000 | ​ | ​ | — | ​ | ​ | 20,000 | ​ | ​ | —
Advances from FHLB | ​ |  | 102,029 | ​ |  | — | ​ |  | 102,070 | ​ |  | —
Accrued interest payable | ​ |  | 15,334 | ​ |  | — | ​ |  | 15,334 | ​ |  | —
Subordinated debt | ​ |  | 23,221 | ​ |  | — | ​ |  | — | ​ |  | 22,076
Unrecognized financial instruments (net of contract amount) | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Commitments to originate loans | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Letters of credit | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Lines of credit | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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 receivable, net | ​ |  | 4,048,961 | ​ |  | — | ​ |  | — | ​ |  | 3,976,696
Accrued interest receivable | ​ |  | 26,018 | ​ |  | — | ​ |  | 26,018 | ​ |  | —
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 | ​ |  | — | ​ |  | 104,084 | ​ |  | —
Accrued interest payable | ​ | ​ | 14,186 | ​ |  | — | ​ |  | 14,186 | ​ |  | —
Subordinated debt | ​ | ​ | 23,208 | ​ | ​ | — | ​ |  | — | ​ |  | 21,722
Unrecognized financial instruments (net of contract amount) | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ |  | ​
Commitments to originate loans | ​ | ​ | — | ​ |  | — | ​ |  | — | ​ |  | —
Letters of credit | ​ |  | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Lines of credit | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​

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