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, 2023	Jun. 30, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Amount of loan relationships subject to annual credit analysis	$ 3,000
Loan relationships that are subject to independent annual review	1,000
2023 / 2022	819,402	$ 1,146,932
2022 / 2021	1,027,343	721,665
2021 / 2020	650,964	251,984
2020 / 2019	241,155	103,484
2019 / 2018	123,988	78,834
Prior	249,927	148,060
Revolving loans	367,741	268,884
Total	3,480,520	2,719,843
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	802,331	1,107,991
2022 / 2021	982,312	718,973
2021 / 2020	646,930	248,814
2020 / 2019	228,145	102,783
2019 / 2018	123,111	78,116
Prior	246,089	144,948
Revolving loans	360,893	266,719
Total	3,389,811	2,668,344
Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	8,430	6,147
2022 / 2021	13,514	1,276
2021 / 2020	930	2,939
2020 / 2019	12,459	62
2019 / 2018	207	668
Prior	146	2,216
Revolving loans	5,163	1,754
Total	40,849	15,062
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	2,940	9,297
Total	2,940	9,297
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	5,701	22,670
2022 / 2021	31,517	1,416
2021 / 2020	3,104	231
2020 / 2019	551	639
2019 / 2018	670	50
Prior	3,692	896
Revolving loans	1,685	411
Total	46,920	26,313
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022		827
Total		827
Residential Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	284,172	380,812
2022 / 2021	330,891	296,420
2021 / 2020	261,261	119,634
2020 / 2019	108,729	19,879
2019 / 2018	26,668	22,161
Prior	101,682	59,180
Revolving loans	7,567	6,074
Total	1,120,970	904,160
Residential Real Estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	283,090	380,502
2022 / 2021	329,020	295,260
2021 / 2020	260,233	118,464
2020 / 2019	106,337	19,383
2019 / 2018	26,467	22,143
Prior	100,592	58,545
Revolving loans	7,511	6,074
Total	1,113,250	900,371
Residential Real Estate | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	283	44
2022 / 2021	1,147	242
2021 / 2020	580	1,083
2020 / 2019	2,307	56
2019 / 2018	201
Prior	27	30
Revolving loans	56
Total	4,601	1,455
Residential Real Estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	799	266
2022 / 2021	724	918
2021 / 2020	448	87
2020 / 2019	85	440
2019 / 2018		18
Prior	1,063	605
Total	3,119	2,334
Construction Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	114,348	100,114
2022 / 2021	68,437	34,082
2021 / 2020	11,896
2020 / 2019	12,383
2019 / 2018	94
Revolving loans	5,616	220
Total	212,774	134,416
Construction Real Estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	112,913	100,114
2022 / 2021	68,069	34,082
2021 / 2020	11,896
2020 / 2019	9,193
2019 / 2018	94
Revolving loans	5,616	220
Total	207,781	134,416
Construction Real Estate | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	155
2020 / 2019	3,190
Total	3,345
Construction Real Estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	1,280
2022 / 2021	368
Total	1,648
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	285,985	524,459
2022 / 2021	519,642	285,986
2021 / 2020	293,566	107,851
2020 / 2019	105,278	71,393
2019 / 2018	86,872	52,494
Prior	134,592	80,208
Revolving loans	34,379	24,282
Total	1,460,314	1,146,673
Commercial Real Estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	272,653	487,486
2022 / 2021	480,124	284,736
2021 / 2020	290,963	105,893
2020 / 2019	98,101	71,380
2019 / 2018	86,394	51,804
Prior	132,560	78,115
Revolving loans	33,128	23,669
Total	1,393,923	1,103,083
Commercial Real Estate | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	7,251	4,763
2022 / 2021	9,895	769
2021 / 2020	165	1,818
2020 / 2019	6,874
2019 / 2018		668
Prior	119	2,000
Revolving loans		548
Total	24,304	10,566
Commercial Real Estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	2,940	9,297
Total	2,940	9,297
Commercial Real Estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	3,141	22,086
2022 / 2021	29,623	481
2021 / 2020	2,438	140
2020 / 2019	303	13
2019 / 2018	478	22
Prior	1,913	93
Revolving loans	1,251	65
Total	39,147	22,900
Commercial Real Estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022		827
Total		827
Consumer loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	27,260	28,563
2022 / 2021	18,098	11,066
2021 / 2020	6,726	3,666
2020 / 2019	2,066	1,524
2019 / 2018	854	926
Prior	1,605	707
Revolving loans	68,874	46,544
Total	125,483	92,996
Consumer loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	27,171	28,519
2022 / 2021	17,498	10,989
2021 / 2020	6,581	3,662
2020 / 2019	2,048	1,524
2019 / 2018	854	916
Prior	1,510	676
Revolving loans	68,727	46,521
Total	124,389	92,807
Consumer loans | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	74	21
2022 / 2021	596	71
2021 / 2020	64
2020 / 2019	10
Total	744	92
Consumer loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	15	23
2022 / 2021	4	6
2021 / 2020	81	4
2020 / 2019	8
2019 / 2018		10
Prior	95	31
Revolving loans	147	23
Total	350	97
Commercial loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	107,637	112,984
2022 / 2021	90,275	94,111
2021 / 2020	77,515	20,833
2020 / 2019	12,699	10,688
2019 / 2018	9,500	3,253
Prior	12,048	7,965
Revolving loans	251,305	191,764
Total	560,979	441,598
Commercial loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	106,504	111,370
2022 / 2021	87,601	93,906
2021 / 2020	77,257	20,795
2020 / 2019	12,466	10,496
2019 / 2018	9,302	3,253
Prior	11,427	7,612
Revolving loans	245,911	190,235
Total	550,468	437,667
Commercial loans | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	667	1,319
2022 / 2021	1,876	194
2021 / 2020	121	38
2020 / 2019	78	6
2019 / 2018	6
Prior		186
Revolving loans	5,107	1,206
Total	7,855	2,949
Commercial loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	466	295
2022 / 2021	798	11
2021 / 2020	137
2020 / 2019	155	186
2019 / 2018	192
Prior	621	167
Revolving loans	287	323
Total	$ 2,656	$ 982