Stockholders' Equity - Stock Options - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
		Jun. 30, 2022	Jun. 30, 2021
Stockholders Equity Note [Line Items]
Weighted average grant date fair value of options per share granted		$ 1.02	$ 1.14
Exercised		0	0
Stock-based compensation expense	[1]	$ 3,211	$ 1,755
Restricted Stock Awards and Stock Options
Stockholders Equity Note [Line Items]
Total unrecognized compensation cost		$ 2,300	1,400
Stock-based compensation period for recognition		1 year 2 months 12 days
GECC Common Shares
Stockholders Equity Note [Line Items]
Stock issued during period, value		$ 900
Stock issued during period value vested immediately		$ 200
Number of years issued shares vest annually on pro-rata basis		3 years
GECC Common Shares | Employees
Stockholders Equity Note [Line Items]
Stock-based compensation expense		$ 400
Employee Stock Option
Stockholders Equity Note [Line Items]
Stock-based compensation expense		$ 2,800	$ 1,800

[1] Non-cash compensation includes stock-based compensation and compensation in the form of stock in portfolio companies held by the Company. Non-cash compensation attributable to the investment management segment is included in investment management expenses in the consolidated statements of operations. Non-cash compensation attributable to the general corporate segment is included in selling, general and administrative expense in the consolidated statements of operations.