Accumulated Other Comprehensive Income (AOCI) - Reclassification out of AOCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Total reclassified amount before tax		$ 244	$ 334
Net Realized Gains on Sale of AFS Securities
Unrealized gain on securities available-for-sale		244
Compensation and benefits (included in computation of net periodic pension costs)
Amortization of defined benefit pension items:	$ 6	(10)
Provision for Income Tax
Tax benefit	1	49
Net Income
Total reclassification out of AOCI	5	185
Reclassification out of Accumulated Other Comprehensive Income
Total reclassified amount before tax	$ 6	$ 234