Loans and Allowance for Credit Losses - Gross Charge-offs by Loan Class and Year of Origination (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
2026 / 2025 / 2024	$ 770	$ 156	$ 38
2025 / 2024 / 2023	3,070	1,688	948
2024 / 2023 / 2022	659	418	761
2023 / 2022 / 2021	4,422	4,348	259
2022 / 2021 / 2020	671	225
Prior	746	148	49
Financing Receivable, Allowance for Credit Loss, Writeoff, Total	10,338	6,983	2,055
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2026 / 2025 / 2024	60	25
2025 / 2024 / 2023	316	505	190
2024 / 2023 / 2022	300	212	195
2023 / 2022 / 2021	1,280	507	10
2022 / 2021 / 2020	438	217
Prior	73	42
Financing Receivable, Allowance for Credit Loss, Writeoff, Total	2,467	1,508	395
Agriculture production
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024 / 2023	2,579	1,052
2024 / 2023 / 2022	29
2023 / 2022 / 2021	68
2022 / 2021 / 2020	20
Financing Receivable, Allowance for Credit Loss, Writeoff, Total	2,696	1,052
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2026 / 2025 / 2024	710	131	38
2025 / 2024 / 2023	175	131	162
2024 / 2023 / 2022	148	84	100
2023 / 2022 / 2021	43	41	41
2022 / 2021 / 2020	20	7
Prior	7	17	9
Financing Receivable, Allowance for Credit Loss, Writeoff, Total	1,103	411	350
Secured by real estate \| 1-4 Family residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024 / 2023 / 2022	182		6
2023 / 2022 / 2021	200
2022 / 2021 / 2020	7
Prior	424	89	40
Financing Receivable, Allowance for Credit Loss, Writeoff, Total	813	89	46
Secured by real estate \| Commercial Real Estate \| Non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024 / 2023			496
2023 / 2022 / 2021	2,800	3,800
2022 / 2021 / 2020	186
Financing Receivable, Allowance for Credit Loss, Writeoff, Total	2,986	3,800	496
Secured by real estate \| Commercial Real Estate \| Owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
2024 / 2023 / 2022		122
Prior	81
Financing Receivable, Allowance for Credit Loss, Writeoff, Total	81	122
Secured by real estate \| Multi-family real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024 / 2023 / 2022			382
2023 / 2022 / 2021			97
Financing Receivable, Allowance for Credit Loss, Writeoff, Total			479
Secured by real estate \| Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024 / 2023			100
2024 / 2023 / 2022			78
2023 / 2022 / 2021	31		111
2022 / 2021 / 2020		1
Prior	161
Financing Receivable, Allowance for Credit Loss, Writeoff, Total	$ 192	$ 1	$ 289

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

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