Segment Information - Schedule of Assets by Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2020	Jun. 30, 2020
Segment Reporting Information [Line Items]
Fixed assets, net	$ 8,115	$ 8,372
Identifiable intangible assets, net	8,509	8,928
Goodwill	52,463	50,536	$ 50,010	$ 50,010
Other assets	92,033	94,033
Total assets	161,120	161,869
Durable Medical Equipment
Segment Reporting Information [Line Items]
Fixed assets, net	8,093	8,349
Identifiable intangible assets, net	6,792	7,104
Goodwill	52,463	50,536
Other assets	20,872	21,150
Total assets	88,220	87,139
Investment Management
Segment Reporting Information [Line Items]
Fixed assets, net	21	21
Identifiable intangible assets, net	1,717	1,824
Other assets	49,387	66,907
Total assets	51,125	68,752
General Corporate
Segment Reporting Information [Line Items]
Fixed assets, net	1	2
Other assets	21,774	5,976
Total assets	$ 21,775	$ 5,978