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, 2022	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	598,196	$ 1,146,932
2022 / 2021	1,003,161	721,665
2021 / 2020	625,012	251,984
2020 / 2019	218,923	103,484
2019 / 2018	87,585	78,834
Prior	178,018	148,060
Revolving loans	284,469	268,884
Total	2,995,364	2,719,843
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	589,019	1,107,991
2022 / 2021	961,450	718,973
2021 / 2020	623,555	248,814
2020 / 2019	211,608	102,783
2019 / 2018	87,148	78,116
Prior	175,418	144,948
Revolving loans	280,275	266,719
Total	2,928,473	2,668,344
Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	7,269	6,147
2022 / 2021	9,059	1,276
2021 / 2020	815	2,939
2020 / 2019	6,814	62
2019 / 2018	126	668
Prior	2,042	2,216
Revolving loans	3,190	1,754
Total	29,315	15,062
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022		9,297
Total		9,297
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	1,908	22,670
2022 / 2021	32,652	1,416
2021 / 2020	642	231
2020 / 2019	501	639
2019 / 2018	311	50
Prior	558	896
Revolving loans	1,004	411
Total	37,576	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	220,001	380,812
2022 / 2021	341,701	296,420
2021 / 2020	263,124	119,634
2020 / 2019	112,894	19,879
2019 / 2018	16,717	22,161
Prior	69,705	59,180
Revolving loans	5,651	6,074
Total	1,029,793	904,160
Residential Real Estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	219,153	380,502
2022 / 2021	341,034	295,260
2021 / 2020	262,113	118,464
2020 / 2019	110,057	19,383
2019 / 2018	16,329	22,143
Prior	69,239	58,545
Revolving loans	5,602	6,074
Total	1,023,527	900,371
Residential Real Estate | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022		44
2022 / 2021	338	242
2021 / 2020	467	1,083
2020 / 2019	2,348	56
2019 / 2018	120
Prior	28	30
Revolving loans	49
Total	3,350	1,455
Residential Real Estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	848	266
2022 / 2021	329	918
2021 / 2020	544	87
2020 / 2019	489	440
2019 / 2018	268	18
Prior	438	605
Total	2,916	2,334
Construction Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	69,674	100,114
2022 / 2021	65,207	34,082
2021 / 2020	17,427
Revolving loans	2,840	220
Total	155,148	134,416
Construction Real Estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	69,674	100,114
2022 / 2021	65,207	34,082
2021 / 2020	17,427
Revolving loans	2,840	220
Total	155,148	134,416
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	216,570	524,459
2022 / 2021	488,646	285,986
2021 / 2020	262,194	107,851
2020 / 2019	90,799	71,393
2019 / 2018	61,286	52,494
Prior	97,942	80,208
Revolving loans	29,010	24,282
Total	1,246,447	1,146,673
Commercial Real Estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	209,157	487,486
2022 / 2021	450,360	284,736
2021 / 2020	262,027	105,893
2020 / 2019	86,418	71,380
2019 / 2018	61,274	51,804
Prior	95,839	78,115
Revolving loans	27,775	23,669
Total	1,192,850	1,103,083
Commercial Real Estate | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	6,525	4,763
2022 / 2021	7,309	769
2021 / 2020	167	1,818
2020 / 2019	4,378
2019 / 2018		668
Prior	2,014	2,000
Revolving loans	720	548
Total	21,113	10,566
Commercial Real Estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022		9,297
Total		9,297
Commercial Real Estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	888	22,086
2022 / 2021	30,977	481
2021 / 2020		140
2020 / 2019	3	13
2019 / 2018	12	22
Prior	89	93
Revolving loans	515	65
Total	32,484	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	19,144	28,563
2022 / 2021	20,663	11,066
2021 / 2020	7,738	3,666
2020 / 2019	2,442	1,524
2019 / 2018	985	926
Prior	1,351	707
Revolving loans	51,433	46,544
Total	103,756	92,996
Consumer loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	19,088	28,519
2022 / 2021	20,649	10,989
2021 / 2020	7,613	3,662
2020 / 2019	2,421	1,524
2019 / 2018	985	916
Prior	1,320	676
Revolving loans	51,433	46,521
Total	103,509	92,807
Consumer loans | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	56	21
2022 / 2021		71
2021 / 2020	66
2020 / 2019	12
Total	134	92
Consumer loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022		23
2022 / 2021	14	6
2021 / 2020	59	4
2020 / 2019	9
2019 / 2018		10
Prior	31	31
Revolving loans		23
Total	113	97
Commercial loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	72,807	112,984
2022 / 2021	86,944	94,111
2021 / 2020	74,529	20,833
2020 / 2019	12,788	10,688
2019 / 2018	8,597	3,253
Prior	9,020	7,965
Revolving loans	195,535	191,764
Total	460,220	441,598
Commercial loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	71,947	111,370
2022 / 2021	84,200	93,906
2021 / 2020	74,375	20,795
2020 / 2019	12,712	10,496
2019 / 2018	8,560	3,253
Prior	9,020	7,612
Revolving loans	192,625	190,235
Total	453,439	437,667
Commercial loans | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	688	1,319
2022 / 2021	1,412	194
2021 / 2020	115	38
2020 / 2019	76	6
2019 / 2018	6
Prior		186
Revolving loans	2,421	1,206
Total	4,718	2,949
Commercial loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2023 / 2022	172	295
2022 / 2021	1,332	11
2021 / 2020	39
2020 / 2019		186
2019 / 2018	31
Prior		167
Revolving loans	489	323
Total	$ 2,063	$ 982