Financial Highlights Per Share Performance (Tables)

12 Months Ended

Jun. 30, 2022

Investment Company, Financial Highlights [Abstract]

Summary of Per Share Data

	Years Ended June 30,
	2022			2021			2020
Per Share Data:
Net asset value, beginning of year	$	23.19		$	5.37		$	7.29
Net (decrease) increase in net assets from investment operations
Net investment loss		(0.71	)		(0.52	)		(0.16	)
Net realized and unrealized (loss) gain		(11.52	)		18.34			(1.76	)
Net (decrease) increase in net assets resulting from operations		(12.23	)		17.82			(1.92	)
Net asset value, end of year	$	10.96		$	23.19		$	5.37
Total return		-52.74	%		331.84	%		-26.34	%
Ratios to average net assets:
Net investment loss		-2.50	%		-2.59	%		-3.00	%
Expenses		-2.50	%		-2.59	%		-3.00	%