Non-Controlling Interests and Preferred Stock of Subsidiary - Summary of Non-controlling Interest Balance on Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Net income (loss)
Total	$ (595)	$ (152)
DME, Inc.
Net income (loss)
Temporary equity	(263)	(22)
Permanent equity	(263)	(22)
Total	(526)	(44)
GP Corp.
Net income (loss)
Permanent equity	(87)	(156)
GEC GP
Net income (loss)
Permanent equity	(1)
Consolidated Fund
Net income (loss)
Permanent equity	(96)
Forest
Net income (loss)
Permanent equity	62
FM Holdings
Net income (loss)
Permanent equity	$ 53	$ 48