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Loans and Allowance for Credit Losses - Loan portfolio aging analysis (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) loan | Jun. 30, 2025 USD ($) loan
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | $ 4,191,743 | $ 4,100,768
Number of PCD loans greater than 90 days past due | loan | 2 | 3
Purchased credit-impaired loans | $ 6,200 | $ 6,200
Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 29,278 | 25,623
30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 10,292 | 3,470
60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 2,152 | 2,593
Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 16,834 | 19,560
Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 4,162,465 | 4,075,145
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
Commercial and industrial | Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 4,928 | 3,111
Commercial and industrial | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 3,229 | 1,055
Commercial and industrial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 482 | 219
Commercial and industrial | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,217 | 1,837
Commercial and industrial | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 517,017 | 507,148
Agriculture production |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 229,338 | 206,128
Agriculture production | Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 215 | 405
Agriculture production | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 16 | 163
Agriculture production | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable |  | 164
Agriculture production | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 199 | 78
Agriculture production | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 229,123 | 205,723
Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 56,051 | 55,387
Consumer | Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 459 | 552
Consumer | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 320 | 380
Consumer | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 101 | 98
Consumer | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 38 | 74
Consumer | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 55,592 | 54,835
All other loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 5,094 | 5,102
All other loans | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 5,094 | 5,102
Secured by real estate | 1-4 Family residential real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,021,300 | 992,445
Secured by real estate | 1-4 Family residential real estate | Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 6,715 | 5,732
Secured by real estate | 1-4 Family residential real estate | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,295 | 1,317
Secured by real estate | 1-4 Family residential real estate | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,275 | 1,973
Secured by real estate | 1-4 Family residential real estate | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 4,145 | 2,442
Secured by real estate | 1-4 Family residential real estate | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,014,585 | 986,713
Secured by real estate | Commercial Real Estate | Non-owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 918,275 | 888,317
Secured by real estate | Commercial Real Estate | Non-owner occupied | Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 7,226 | 5,846
Secured by real estate | Commercial Real Estate | Non-owner occupied | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 4,390 | 62
Secured by real estate | Commercial Real Estate | Non-owner occupied | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 2,836 | 5,784
Secured by real estate | Commercial Real Estate | Non-owner occupied | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 911,049 | 882,471
Secured by real estate | Commercial Real Estate | Owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 454,265 | 442,984
Secured by real estate | Commercial Real Estate | Owner occupied | Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 666 | 1,105
Secured by real estate | Commercial Real Estate | Owner occupied | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 623 |
Secured by real estate | Commercial Real Estate | Owner occupied | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable |  | 116
Secured by real estate | Commercial Real Estate | Owner occupied | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 43 | 989
Secured by real estate | Commercial Real Estate | Owner occupied | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 453,599 | 441,879
Secured by real estate | Multi-family real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 445,953 | 422,758
Secured by real estate | Multi-family real estate | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 445,953 | 422,758
Secured by real estate | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 283,912 | 332,405
Secured by real estate | Construction and land development | Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 5,927 | 6,070
Secured by real estate | Construction and land development | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 34 | 315
Secured by real estate | Construction and land development | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable |  | 12
Secured by real estate | Construction and land development | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 5,893 | 5,743
Secured by real estate | Construction and land development | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 277,985 | 326,335
Secured by real estate | Agriculture real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 255,610 | 244,983
Secured by real estate | Agriculture real estate | Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 3,142 | 2,802
Secured by real estate | Agriculture real estate | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 385 | 178
Secured by real estate | Agriculture real estate | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 294 | 11
Secured by real estate | Agriculture real estate | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 2,463 | 2,613
Secured by real estate | Agriculture real estate | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | $ 252,468 | $ 242,181

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