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Loans and Allowance for Credit Losses - Collateral dependent loans and related ACL (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Jun. 30, 2025 | Sep. 30, 2024 | Jun. 30, 2024
--- | --- | --- | --- | ---
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | $ 4,191,743 | $ 4,100,768 |  |
Related allowance for credit losses | 52,081 | 51,629 | $ 54,437 | $ 52,516
Construction and land development |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 283,912 |  |  |
Agriculture real estate |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 255,610 |  |  |
Commercial and industrial |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 521,945 | 510,259 |  |
Related allowance for credit losses | 7,833 | 6,952 | 6,114 | 6,233
Agriculture production |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 229,338 | 206,128 |  |
Related allowance for credit losses | 3,608 | 3,374 | 784 | 835
Consumer |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 56,051 | 55,387 |  |
Related allowance for credit losses | 1,144 | 952 | 526 | 578
All other loans |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 5,094 | 5,102 |  |
Related allowance for credit losses | 2 | 4 | $ 14 | $ 17
Real Estate |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 47,103 | 41,259 |  |
Real Estate | 1-4 Family residential real estate |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 2,913 | 752 |  |
Real Estate | Commercial Real Estate | Non-owner occupied |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 32,327 | 31,764 |  |
Real Estate | Commercial Real Estate | Owner occupied |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 3,657 | 811 |  |
Real Estate | Construction and land development |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 5,743 | 5,743 |  |
Real Estate | Agriculture real estate |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 2,463 | 1,695 |  |
Real Estate | Commercial and industrial |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable |  | 494 |  |
Land |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 1,710 | 661 |  |
Land | Construction and land development |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 500 | 661 |  |
Land | Agriculture real estate |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 1,210 |  |  |
Other |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 5,901 | 3,669 |  |
Other | Commercial Real Estate | Owner occupied |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 468 | 541 |  |
Other | Commercial and industrial |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 5,421 | 3,128 |  |
Other | Agriculture production |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 12 |  |  |
Collateral Pledged |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 54,714 | 45,589 |  |
Related allowance for credit losses | 6,318 | 8,153 |  |
Collateral Pledged | 1-4 Family residential real estate |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 2,913 | 752 |  |
Related allowance for credit losses | 724 | 117 |  |
Collateral Pledged | Commercial Real Estate | Non-owner occupied |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 32,327 | 31,764 |  |
Related allowance for credit losses | 4,234 | 6,456 |  |
Collateral Pledged | Commercial Real Estate | Owner occupied |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 4,125 | 1,352 |  |
Related allowance for credit losses | 240 | 290 |  |
Collateral Pledged | Construction and land development |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 6,243 | 6,404 |  |
Related allowance for credit losses |  | 161 |  |
Collateral Pledged | Agriculture real estate |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 3,673 | 1,695 |  |
Collateral Pledged | Commercial and industrial |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | 5,421 | 3,622 |  |
Related allowance for credit losses | 1,120 | $ 1,129 |  |
Collateral Pledged | Agriculture production |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Total Loans Receivable | $ 12 |  |  |

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