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Loans and Allowance for Credit Losses - Gross Charge-offs by Loan Class and Year of Origination (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]
2026 / 2025			$ 587	$ 3
2025 / 2024			418	1,111
2024 / 2023			482	295
2023 / 2022			3,166	38
2022 / 2021			495	23
Prior			734	88
Financing Receivable, Allowance for Credit Loss, Writeoff, Total	$ 503	$ 1,119	5,882	1,558
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2026 / 2025			48
2025 / 2024			267	22
2024 / 2023			159	103
2023 / 2022			62
2022 / 2021			377	17
Prior			67	11
Financing Receivable, Allowance for Credit Loss, Writeoff, Total	116	88	980	153
Agriculture production
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024				976
2024 / 2023			29
2023 / 2022			67
2022 / 2021			20
Financing Receivable, Allowance for Credit Loss, Writeoff, Total		976	116	976
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2026 / 2025			539	3
2025 / 2024			151	113
2024 / 2023			112	70
2023 / 2022			37	38
2022 / 2021			16	5
Prior			7	17
Financing Receivable, Allowance for Credit Loss, Writeoff, Total	340	45	862	246
Secured by real estate \| 1-4 Family residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024 / 2023			182
2023 / 2022			200
2022 / 2021			7
Prior			418	60
Financing Receivable, Allowance for Credit Loss, Writeoff, Total		$ 10	807	60
Secured by real estate \| Commercial Real Estate \| Non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022			2,800
2022 / 2021			75
Financing Receivable, Allowance for Credit Loss, Writeoff, Total			2,875
Secured by real estate \| Commercial Real Estate \| Owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
2024 / 2023				122
Prior			81
Financing Receivable, Allowance for Credit Loss, Writeoff, Total	$ 47		81	122
Secured by real estate \| Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
2022 / 2021				1
Prior			161
Financing Receivable, Allowance for Credit Loss, Writeoff, Total			$ 161	$ 1