Commitments and Credit Risk - Off-balance-sheet and Credit Risk (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Unused Commitments to Extend Credit	$ 707.7	$ 491.6
Commitments to originate fixed rate loans	$ 240.0
Weighted-average rate	4.66%
Commitments extended period	30 days
Diversified portfolio, loans	$ 1,000.0
Minimum
Term	12 months
Commitments to originate fixed rate loans rates	2.19%
Maximum
Term	24 months
Commitments to originate fixed rate loans rates	6.75%