Securities Sold Under Agreements to Repurchase (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Securities Sold Under Agreements to Repurchase
Year-end balance	$ 0	$ 4,376
Average balance during the year	82	3,988
Maximum month-end balance during the year	$ 0	$ 4,703
Average interest during the year	0.03%	0.90%
Year-end interest rate	0.00%	0.93%