Loans and Allowance for Credit Losses - Activity in the Allowance for credit losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Allowance for credit losses:
Balance, beginning of period	$ 52,516	$ 47,820	$ 33,192
Provision (benefit) charged to expense	5,847	6,625	14,131
Losses charged off	(6,983)	(2,055)	(673)
Recoveries	249	126	49
Balance, end of period	51,629	52,516	47,820
Impact of adoption ASU | Accounting Standards Update 2022-02
Allowance for credit losses:
Balance, beginning of period			1,121
Commercial and industrial
Allowance for credit losses:
Balance, beginning of period	6,233	5,235	3,597
Provision (benefit) charged to expense	2,160	1,356	1,492
Losses charged off	(1,508)	(395)	(76)
Recoveries	67	37	8
Balance, end of period	6,952	6,233	5,235
Commercial and industrial | Impact of adoption ASU | Accounting Standards Update 2022-02
Allowance for credit losses:
Balance, beginning of period			214
Agriculture production
Allowance for credit losses:
Balance, beginning of period	835	782	799
Provision (benefit) charged to expense	3,589	53	(11)
Losses charged off	(1,052)		(6)
Recoveries	2
Balance, end of period	3,374	835	782
Consumer
Allowance for credit losses:
Balance, beginning of period	578	490	402
Provision (benefit) charged to expense	698	400	302
Losses charged off	(411)	(350)	(248)
Recoveries	87	38	28
Balance, end of period	952	578	490
Consumer | Impact of adoption ASU | Accounting Standards Update 2022-02
Allowance for credit losses:
Balance, beginning of period			6
All other loans
Allowance for credit losses:
Balance, beginning of period	17	21	14
Provision (benefit) charged to expense	(13)	(4)	7
Balance, end of period	4	17	21
Secured by real estate | 1-4 residential real estate
Allowance for credit losses:
Balance, beginning of period	10,528	9,474	7,266
Provision (benefit) charged to expense	(211)	1,067	2,044
Losses charged off	(89)	(46)	(98)
Recoveries	46	33	1
Balance, end of period	10,274	10,528	9,474
Secured by real estate | 1-4 residential real estate | Impact of adoption ASU | Accounting Standards Update 2022-02
Allowance for credit losses:
Balance, beginning of period			261
Secured by real estate | Commercial Real Estate | Non-owner occupied
Allowance for credit losses:
Balance, beginning of period	19,055	13,863	11,101
Provision (benefit) charged to expense	(3,014)	5,688	2,718
Losses charged off	(3,800)	(496)
Balance, end of period	12,241	19,055	13,863
Secured by real estate | Commercial Real Estate | Non-owner occupied | Impact of adoption ASU | Accounting Standards Update 2022-02
Allowance for credit losses:
Balance, beginning of period			44
Secured by real estate | Commercial Real Estate | Owner occupied
Allowance for credit losses:
Balance, beginning of period	4,815	5,168	2,555
Provision (benefit) charged to expense	(172)	(353)	2,274
Losses charged off	(122)		(245)
Balance, end of period	4,521	4,815	5,168
Secured by real estate | Commercial Real Estate | Owner occupied | Impact of adoption ASU | Accounting Standards Update 2022-02
Allowance for credit losses:
Balance, beginning of period			584
Secured by real estate | Multi-family real estate
Allowance for credit losses:
Balance, beginning of period	5,447	6,806	2,057
Provision (benefit) charged to expense	(1,165)	(880)	4,749
Losses charged off		(479)
Recoveries	47
Balance, end of period	4,329	5,447	6,806
Secured by real estate | Construction and land development
Allowance for credit losses:
Balance, beginning of period	2,901	3,414	3,256
Provision (benefit) charged to expense	1,888	(242)	134
Losses charged off	(1)	(289)
Recoveries		18	12
Balance, end of period	4,788	2,901	3,414
Secured by real estate | Construction and land development | Impact of adoption ASU | Accounting Standards Update 2022-02
Allowance for credit losses:
Balance, beginning of period			12
Secured by real estate | Agriculture real estate
Allowance for credit losses:
Balance, beginning of period	2,107	2,567	2,145
Provision (benefit) charged to expense	2,087	(460)	422
Balance, end of period	$ 4,194	$ 2,107	$ 2,567