Financial Highlights Per Share Performance (Tables)

12 Months Ended

Jun. 30, 2025

Investment Company, Financial Highlights [Abstract]

Summary of Per Share Data

	Years Ended June 30,
	2025			2024			2023
Per Share Data:
Principal Market NAV, beginning of year	$	3.34		$	2.64		$	0.90
Net increase in net assets from investment operations:
Net investment loss		(0.08	)		(0.07	)		(0.03	)
Net realized and unrealized gain		1.05			0.77			1.77
Net increase in net assets resulting from operations		0.97			0.70			1.74
Principal Market NAV, end of year	$	4.31		$	3.34		$	2.64
Total return		29.04	%		26.52	%		193.33	%
Ratios to average net assets:
Net investment loss		-2.50	%		-2.50	%		-2.50	%
Expenses		-2.50	%		-2.50	%		-2.50	%