Note 8 - Financial Highlights (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Financial Highlights [Table Text Block]

	Three Months Ended
	March 31,
	2020			2019
Net asset value per Share, beginning of period	$	14.56		$	12.28
Net investment loss(a)		(0.01	)		(0.01	)
Net realized and unrealized gain(b)		0.82			0.13
Net increase in net assets from operations		0.81			0.12
Net asset value per Share, end of period	$	15.37		$	12.40
Total return, at net asset value(c)(d)		5.56	%		0.98	%
Ratio to average net assets:
Net investment loss(e)		(0.25	)%		(0.25	)%
Expenses(e)		0.25	%		0.25	%