Loans and Allowance for Loan Losses - Classes of loans (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2020 USD ($) loan	Jun. 30, 2019 USD ($)
Loans Receivable, Gross
Loans Receivable	$ 2,249,915	$ 1,909,464
Loans in process
Loans Receivable	(78,452)	(43,153)
Deferred loan fees, net
Loans Receivable	(4,395)	(3)
Allowance for loan losses
Loans Receivable	(25,139)	(19,903)
Loans Receivable
Loans Receivable	2,141,929	1,846,405
Loans purchased participations
Loans Receivable	$ 58,200
Number of loans | loan	23
Consumer loans
Loans Receivable	$ 80,767	97,534
Commercial loans
Loans Receivable	468,448	355,874
Residential
Loans Receivable	627,357	491,992
Construction
Loans Receivable	185,924	123,287
Commercial
Loans Receivable	$ 887,419	$ 840,777