Investments - Supplemental Employee Retirement Plan Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jun. 30, 2022
Schedule of Trading Securities and Other Trading Assets
Total SERP investments	$ 10,533	$ 10,517
Total SERP obligation	10,533	10,517
SERP investments - current asset
Schedule of Trading Securities and Other Trading Assets
Total SERP investments	3,191	3,284
Total SERP obligation	3,191	3,284
SERP investments - other long-term asset
Schedule of Trading Securities and Other Trading Assets
Total SERP investments	7,342	7,233
Total SERP obligation	$ 7,342	$ 7,233