Loans and Allowance for Credit Losses - Credit risk profile based on rating category and year of origination (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2025	Jun. 30, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Amount of loan relationships subject to annual credit analysis	$ 4,000
Loan relationships that are subject to independent annual review	1,000
2025 / 2024	761,758	$ 737,190
2024 / 2023	473,580	953,922
2023 / 2022	865,823	833,645
2022 / 2021	743,343	518,406
2021 / 2020	417,956	171,485
Prior	306,454	200,743
Revolving loans	454,784	434,644
Total	4,023,698	3,850,035
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	742,085	720,679
2024 / 2023	459,354	926,158
2023 / 2022	844,495	802,592
2022 / 2021	707,366	515,857
2021 / 2020	416,883	166,539
Prior	304,079	196,262
Revolving loans	448,457	432,843
Total	3,922,719	3,760,930
Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	11,703	8,921
2024 / 2023	10,781	26,306
2023 / 2022	20,440	2,049
2022 / 2021	2,136	2,063
2021 / 2020	620	4,800
Prior	669	2,963
Revolving loans	5,828	1,141
Total	52,177	48,243
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	7,970	7,590
2024 / 2023	3,445	1,458
2023 / 2022	888	29,004
2022 / 2021	33,841	486
2021 / 2020	453	146
Prior	1,706	1,518
Revolving loans	499	660
Total	48,802	40,862
Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	145,532
2024 / 2023	53,742
2023 / 2022	109,554
2022 / 2021	8,083
2021 / 2020	2,136
Prior	2,364
Revolving loans	2,088
Total	323,499
Construction and land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	138,904
2024 / 2023	53,742
2023 / 2022	109,496
2022 / 2021	8,083
2021 / 2020	2,136
Prior	2,298
Revolving loans	2,088
Total	316,747
Construction and land development | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	5,743
Prior	66
Total	5,809
Construction and land development | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	885
2023 / 2022	58
Total	943
Agriculture real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	42,629
2024 / 2023	31,954
2023 / 2022	41,013
2022 / 2021	49,799
2021 / 2020	44,471
Prior	14,805
Revolving loans	22,356
Total	247,027
Agriculture real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	42,298
2024 / 2023	29,394
2023 / 2022	40,273
2022 / 2021	48,733
2021 / 2020	44,196
Prior	14,546
Revolving loans	22,356
Total	241,796
Agriculture real estate | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	296
2024 / 2023	248
2023 / 2022	459
2022 / 2021	1,066
Prior	259
Total	2,328
Agriculture real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	35
2024 / 2023	2,312
2023 / 2022	281
2021 / 2020	275
Total	2,903
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	164,238	117,476
2024 / 2023	50,208	60,929
2023 / 2022	41,918	44,107
2022 / 2021	35,887	43,879
2021 / 2020	18,890	3,261
Prior	7,609	5,860
Revolving loans	169,366	174,635
Total	488,116	450,147
Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	159,560	116,173
2024 / 2023	45,123	60,404
2023 / 2022	39,193	43,205
2022 / 2021	34,533	43,879
2021 / 2020	18,562	3,145
Prior	7,288	4,863
Revolving loans	163,523	174,181
Total	467,782	445,850
Commercial and industrial | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	4,087	1,031
2024 / 2023	5,080	250
2023 / 2022	2,542	43
2022 / 2021	414
2021 / 2020	278
Prior	14	228
Revolving loans	5,621	404
Total	18,036	1,956
Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	591	272
2024 / 2023	5	275
2023 / 2022	183	859
2022 / 2021	940
2021 / 2020	50	116
Prior	307	769
Revolving loans	222	50
Total	2,298	2,341
Agriculture production
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	29,580	41,155
2024 / 2023	22,422	11,348
2023 / 2022	6,914	4,328
2022 / 2021	3,135	6,176
2021 / 2020	4,907	1,965
Prior	1,830	383
Revolving loans	117,270	110,613
Total	186,058	175,968
Agriculture production | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	28,680	40,980
2024 / 2023	21,510	11,288
2023 / 2022	6,832	4,115
2022 / 2021	3,109	6,159
2021 / 2020	4,890	1,965
Prior	1,818	229
Revolving loans	117,063	110,396
Total	183,902	175,132
Agriculture production | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	859	170
2024 / 2023	831	37
2023 / 2022		204
2022 / 2021	19
Prior		127
Revolving loans	207	217
Total	1,916	755
Agriculture production | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	41	5
2024 / 2023	81	23
2023 / 2022	82	9
2022 / 2021	7	17
2021 / 2020	17
Prior	12	27
Total	240	81
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	22,740	30,317
2024 / 2023	14,064	17,321
2023 / 2022	10,288	6,558
2022 / 2021	3,889	2,271
2021 / 2020	1,156	467
Prior	200	54
Revolving loans	1,685	2,683
Total	54,022	59,671
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	22,717	30,317
2024 / 2023	14,061	17,318
2023 / 2022	10,284	6,547
2022 / 2021	3,872	2,268
2021 / 2020	1,153	467
Prior	200	54
Revolving loans	1,685	2,683
Total	53,972	59,654
Consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	23
2024 / 2023	3	3
2023 / 2022	4	11
2022 / 2021	17	3
2021 / 2020	3
Total	50	17
All other loans
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	368	1,139
2024 / 2023	903	644
2023 / 2022	264	122
2022 / 2021	82	217
2021 / 2020	159	43
Prior	1,440	1,816
Total	3,216	3,981
All other loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	368	1,139
2024 / 2023	903	644
2023 / 2022	264	122
2022 / 2021	82	217
2021 / 2020	159	43
Prior	1,440	1,816
Total	3,216	3,981
Secured by real estate | 1-4 residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	157,041	169,297
2024 / 2023	124,737	158,616
2023 / 2022	139,683	195,332
2022 / 2021	175,776	143,300
2021 / 2020	130,299	66,420
Prior	139,936	93,045
Revolving loans	111,436	99,387
Total	978,908	925,397
Secured by real estate | 1-4 residential real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	156,011	167,734
2024 / 2023	123,132	157,530
2023 / 2022	138,972	195,002
2022 / 2021	174,568	142,721
2021 / 2020	130,069	66,292
Prior	138,729	92,728
Revolving loans	111,323	99,365
Total	972,804	921,372
Secured by real estate | 1-4 residential real estate | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	84	877
2024 / 2023	613	289
2023 / 2022	473	87
2022 / 2021	347	396
2021 / 2020	197	98
Prior	256	23
Total	1,970	1,770
Secured by real estate | 1-4 residential real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	946	686
2024 / 2023	992	797
2023 / 2022	238	243
2022 / 2021	861	183
2021 / 2020	33	30
Prior	951	294
Revolving loans	113	22
Total	4,134	2,255
Secured by real estate | Commercial Real Estate | Non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	84,599	125,572
2024 / 2023	96,643	249,077
2023 / 2022	242,561	320,030
2022 / 2021	309,964	103,893
2021 / 2020	81,774	38,134
Prior	72,997	56,594
Revolving loans	8,587	6,470
Total	897,125	899,770
Secured by real estate | Commercial Real Estate | Non-owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	80,150	120,914
2024 / 2023	94,810	232,802
2023 / 2022	227,220	294,138
2022 / 2021	279,507	102,380
2021 / 2020	81,774	33,691
Prior	72,997	55,190
Revolving loans	8,587	6,470
Total	845,045	845,585
Secured by real estate | Commercial Real Estate | Non-owner occupied | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024		4,658
2024 / 2023	1,833	16,232
2023 / 2022	15,299	209
2022 / 2021	203	1,513
2021 / 2020		4,443
Prior		1,404
Total	17,335	28,459
Secured by real estate | Commercial Real Estate | Non-owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	4,449
2024 / 2023		43
2023 / 2022	42	25,683
2022 / 2021	30,254
Total	34,745	25,726
Secured by real estate | Commercial Real Estate | Owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	54,477	67,736
2024 / 2023	59,587	105,268
2023 / 2022	93,235	92,738
2022 / 2021	84,182	87,129
2021 / 2020	77,139	25,664
Prior	50,989	27,733
Revolving loans	20,673	21,208
Total	440,282	427,476
Secured by real estate | Commercial Real Estate | Owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	52,843	63,251
2024 / 2023	57,359	98,776
2023 / 2022	91,568	89,361
2022 / 2021	82,333	86,975
2021 / 2020	76,919	25,664
Prior	50,479	26,124
Revolving loans	20,509	20,147
Total	432,010	410,298
Secured by real estate | Commercial Real Estate | Owner occupied | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	634	1,252
2024 / 2023	2,176	6,492
2023 / 2022	1,667	1,178
2022 / 2021	87	154
2021 / 2020	145
Prior	74	1,181
Revolving loans		520
Total	4,783	10,777
Secured by real estate | Commercial Real Estate | Owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	1,000	3,233
2024 / 2023	52
2023 / 2022		2,199
2022 / 2021	1,762
2021 / 2020	75
Prior	436	428
Revolving loans	164	541
Total	3,489	6,401
Secured by real estate | Multi-family real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	60,554	36,518
2024 / 2023	19,320	157,471
2023 / 2022	180,393	86,171
2022 / 2021	72,546	77,545
2021 / 2020	57,025	21,438
Prior	14,284	5,341
Revolving loans	1,323	80
Total	405,445	384,564
Secured by real estate | Multi-family real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	60,554	36,518
2024 / 2023	19,320	157,471
2023 / 2022	180,393	86,171
2022 / 2021	72,546	77,545
2021 / 2020	57,025	21,438
Prior	14,284	5,341
Revolving loans	1,323	80
Total	405,445	384,564
Secured by real estate | Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024		105,943
2024 / 2023		146,480
2023 / 2022		27,655
2022 / 2021		4,379
2021 / 2020		3,887
Prior		679
Revolving loans		1,518
Total	323,499	290,541
Secured by real estate | Construction and land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024		104,162
2024 / 2023		143,538
2023 / 2022		27,524
2022 / 2021		4,379
2021 / 2020		3,887
Prior		679
Revolving loans		1,518
Total		285,687
Secured by real estate | Construction and land development | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024		652
2024 / 2023		2,906
2023 / 2022		131
Total		3,689
Secured by real estate | Construction and land development | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024		1,129
2024 / 2023		36
Total		1,165
Secured by real estate | Agriculture real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024		42,037
2024 / 2023		46,768
2023 / 2022		56,604
2022 / 2021		49,617
2021 / 2020		10,206
Prior		9,238
Revolving loans		18,050
Total	$ 247,027	232,520
Secured by real estate | Agriculture real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024		39,491
2024 / 2023		46,387
2023 / 2022		56,407
2022 / 2021		49,334
2021 / 2020		9,947
Prior		9,238
Revolving loans		18,003
Total		228,807
Secured by real estate | Agriculture real estate | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024		281
2024 / 2023		100
2023 / 2022		197
2021 / 2020		259
Total		837
Secured by real estate | Agriculture real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024		2,265
2024 / 2023		281
2022 / 2021		283
Revolving loans		47
Total		$ 2,876