Loans and Allowance for Credit Losses - Credit risk profile based on rating category and year of origination (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2024	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	545,108	$ 737,190
2024 / 2023	572,978	953,922
2023 / 2022	901,833	833,645
2022 / 2021	779,144	518,406
2021 / 2020	448,789	171,485
Prior	329,328	200,743
Revolving loans	450,001	434,644
Total	4,027,181	3,850,035
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	528,091	720,679
2024 / 2023	564,116	926,158
2023 / 2022	877,917	802,592
2022 / 2021	749,376	515,857
2021 / 2020	445,748	166,539
Prior	323,839	196,262
Revolving loans	447,499	432,843
Total	3,936,586	3,760,930
Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	14,897	8,921
2024 / 2023	4,050	26,306
2023 / 2022	23,341	2,049
2022 / 2021	1,951	2,063
2021 / 2020	2,114	4,800
Prior	3,139	2,963
Revolving loans	1,521	1,141
Total	51,013	48,243
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	2,120	7,590
2024 / 2023	4,812	1,458
2023 / 2022	575	29,004
2022 / 2021	27,817	486
2021 / 2020	927	146
Prior	2,350	1,518
Revolving loans	981	660
Total	39,582	40,862
Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	119,617
2024 / 2023	82,003
2023 / 2022	157,946
2022 / 2021	27,164
2021 / 2020	2,322
Prior	2,444
Revolving loans	1,892
Total	393,388
Construction and land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	113,678
2024 / 2023	82,003
2023 / 2022	157,946
2022 / 2021	27,040
2021 / 2020	2,322
Prior	2,375
Revolving loans	1,892
Total	387,256
Construction and land development | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	4,949
2022 / 2021	124
Prior	69
Total	5,142
Construction and land development | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	990
Total	990
Agriculture real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	24,701
2024 / 2023	36,670
2023 / 2022	42,858
2022 / 2021	52,274
2021 / 2020	46,471
Prior	17,069
Revolving loans	19,869
Total	239,912
Agriculture real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	24,666
2024 / 2023	34,110
2023 / 2022	42,486
2022 / 2021	52,165
2021 / 2020	46,195
Prior	16,810
Revolving loans	19,869
Total	236,301
Agriculture real estate | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2024 / 2023	248
2023 / 2022	91
2022 / 2021	109
Prior	259
Total	707
Agriculture real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	35
2024 / 2023	2,312
2023 / 2022	281
2021 / 2020	276
Total	2,904
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	102,680	117,476
2024 / 2023	86,511	60,929
2023 / 2022	51,853	44,107
2022 / 2021	38,342	43,879
2021 / 2020	21,051	3,261
Prior	8,857	5,860
Revolving loans	175,505	174,635
Total	484,799	450,147
Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	98,595	116,173
2024 / 2023	86,134	60,404
2023 / 2022	50,804	43,205
2022 / 2021	37,339	43,879
2021 / 2020	20,757	3,145
Prior	8,098	4,863
Revolving loans	174,451	174,181
Total	476,178	445,850
Commercial and industrial | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	3,988	1,031
2024 / 2023	200	250
2023 / 2022	847	43
2022 / 2021	37
2021 / 2020	255
Prior	16	228
Revolving loans	804	404
Total	6,147	1,956
Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	97	272
2024 / 2023	177	275
2023 / 2022	202	859
2022 / 2021	966
2021 / 2020	39	116
Prior	743	769
Revolving loans	250	50
Total	2,474	2,341
Agriculture production
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	20,646	41,155
2024 / 2023	32,125	11,348
2023 / 2022	9,818	4,328
2022 / 2021	3,642	6,176
2021 / 2020	5,699	1,965
Prior	2,068	383
Revolving loans	114,286	110,613
Total	188,284	175,968
Agriculture production | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	20,471	40,980
2024 / 2023	32,054	11,288
2023 / 2022	9,814	4,115
2022 / 2021	3,642	6,159
2021 / 2020	5,682	1,965
Prior	2,056	229
Revolving loans	114,069	110,396
Total	187,788	175,132
Agriculture production | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	137	170
2024 / 2023	71	37
2023 / 2022		204
Prior		127
Revolving loans	217	217
Total	425	755
Agriculture production | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	38	5
2024 / 2023		23
2023 / 2022	4	9
2022 / 2021		17
2021 / 2020	17
Prior	12	27
Total	71	81
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	17,686	30,317
2024 / 2023	17,952	17,321
2023 / 2022	12,271	6,558
2022 / 2021	4,615	2,271
2021 / 2020	1,468	467
Prior	271	54
Revolving loans	1,754	2,683
Total	56,017	59,671
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	17,680	30,317
2024 / 2023	17,925	17,318
2023 / 2022	12,255	6,547
2022 / 2021	4,614	2,268
2021 / 2020	1,438	467
Prior	271	54
Revolving loans	1,754	2,683
Total	55,937	59,654
Consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	6
2024 / 2023	27	3
2023 / 2022	16	11
2022 / 2021	1	3
2021 / 2020	30
Total	80	17
All other loans
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	131	1,139
2024 / 2023	1,000	644
2023 / 2022	578	122
2022 / 2021	82	217
2021 / 2020	210	43
Prior	1,627	1,816
Total	3,628	3,981
All other loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	131	1,139
2024 / 2023	1,000	644
2023 / 2022	578	122
2022 / 2021	82	217
2021 / 2020	210	43
Prior	1,627	1,816
Total	3,628	3,981
Secured by real estate | 1-4 residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	120,888	169,297
2024 / 2023	136,957	158,616
2023 / 2022	144,112	195,332
2022 / 2021	179,625	143,300
2021 / 2020	134,037	66,420
Prior	145,367	93,045
Revolving loans	106,210	99,387
Total	967,196	925,397
Secured by real estate | 1-4 residential real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	119,788	167,734
2024 / 2023	135,773	157,530
2023 / 2022	143,747	195,002
2022 / 2021	178,615	142,721
2021 / 2020	133,271	66,292
Prior	143,936	92,728
Revolving loans	105,962	99,365
Total	961,092	921,372
Secured by real estate | 1-4 residential real estate | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	146	877
2024 / 2023	690	289
2023 / 2022	335	87
2022 / 2021	328	396
2021 / 2020	201	98
Prior	261	23
Total	1,961	1,770
Secured by real estate | 1-4 residential real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	954	686
2024 / 2023	494	797
2023 / 2022	30	243
2022 / 2021	682	183
2021 / 2020	565	30
Prior	1,170	294
Revolving loans	248	22
Total	4,143	2,255
Secured by real estate | Commercial Real Estate | Non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	56,535	125,572
2024 / 2023	100,675	249,077
2023 / 2022	240,004	320,030
2022 / 2021	309,186	103,893
2021 / 2020	86,306	38,134
Prior	81,580	56,594
Revolving loans	8,198	6,470
Total	882,484	899,770
Secured by real estate | Commercial Real Estate | Non-owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	51,464	120,914
2024 / 2023	98,905	232,802
2023 / 2022	224,508	294,138
2022 / 2021	283,746	102,380
2021 / 2020	84,796	33,691
Prior	80,202	55,190
Revolving loans	8,198	6,470
Total	831,819	845,585
Secured by real estate | Commercial Real Estate | Non-owner occupied | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	5,071	4,658
2024 / 2023	1,770	16,232
2023 / 2022	15,454	209
2022 / 2021	202	1,513
2021 / 2020	1,510	4,443
Prior	1,378	1,404
Total	25,385	28,459
Secured by real estate | Commercial Real Estate | Non-owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024 / 2023		43
2023 / 2022	42	25,683
2022 / 2021	25,238
Total	25,280	25,726
Secured by real estate | Commercial Real Estate | Owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	38,073	67,736
2024 / 2023	59,482	105,268
2023 / 2022	94,602	92,738
2022 / 2021	86,927	87,129
2021 / 2020	79,519	25,664
Prior	55,627	27,733
Revolving loans	21,162	21,208
Total	435,392	427,476
Secured by real estate | Commercial Real Estate | Owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	37,467	63,251
2024 / 2023	56,609	98,776
2023 / 2022	87,988	89,361
2022 / 2021	84,846	86,975
2021 / 2020	79,371	25,664
Prior	54,046	26,124
Revolving loans	20,179	20,147
Total	420,506	410,298
Secured by real estate | Commercial Real Estate | Owner occupied | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	606	1,252
2024 / 2023	1,071	6,492
2023 / 2022	6,614	1,178
2022 / 2021	1,151	154
2021 / 2020	148
Prior	1,156	1,181
Revolving loans	500	520
Total	11,246	10,777
Secured by real estate | Commercial Real Estate | Owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024		3,233
2024 / 2023	1,802
2023 / 2022		2,199
2022 / 2021	930
Prior	425	428
Revolving loans	483	541
Total	3,640	6,401
Secured by real estate | Multi-family real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	44,151	36,518
2024 / 2023	19,603	157,471
2023 / 2022	147,791	86,171
2022 / 2021	77,287	77,545
2021 / 2020	71,706	21,438
Prior	14,418	5,341
Revolving loans	1,125	80
Total	376,081	384,564
Secured by real estate | Multi-family real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 / 2024	44,151	36,518
2024 / 2023	19,603	157,471
2023 / 2022	147,791	86,171
2022 / 2021	77,287	77,545
2021 / 2020	71,706	21,438
Prior	14,418	5,341
Revolving loans	1,125	80
Total	376,081	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	393,388	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	$ 239,912	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