Financial Highlights Per Share Performance (Tables)

12 Months Ended

Jun. 30, 2022

Investment Company, Financial Highlights [Abstract]

Summary of Per Share Data

	Year Ended June 30,
	2022			2021			2020
Per Share Data:
Net asset value, beginning of year	$	13.03		$	3.88		$	12.49
Net (decrease) increase in net assets from investment operations:
Net investment loss		(0.31	)		(0.38	)		(0.13	)
Net realized and unrealized (loss) gain		(8.11	)		9.53			(8.48	)
Net (decrease) increase in net assets resulting from operations		(8.42	)		9.15			(8.61	)
Net asset value, end of year	$	4.61		$	13.03		$	3.88
Total return		-64.62	%		235.82	%		-68.94	%
Ratios to average net assets:
Net investment loss		-2.50	%		-2.50	%		-2.50	%
Expenses		-2.50	%		-2.50	%		-2.50	%