Stockholders' Equity - Stock Options - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended
		Sep. 30, 2021	Sep. 30, 2020
Stockholders' Equity
Stock-based compensation	[1]	$ 768	$ 429
Stock issued during period, value		800
Stock issued during period value vested immediately		$ 200
Number of subsequent years issued shares vest annually on pro-rata basis		3 years
Restricted Stock Awards and Stock Options
Stockholders' Equity
Stock-based compensation		$ 600	$ 400
Total unrecognized compensation cost		$ 1,500

[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 condensed consolidated statements of operations.  Non-cash compensation attributable to the general corporate segment is included in selling, general and administrative expense in the condensed consolidated statements of operations.