Note 8 - Financial Highlights (Tables)

6 Months Ended

Jun. 30, 2014

Financial Highlights [Abstract]

Financial Highlights [Table Text Block]

	Three Months Ended June 30, 2014			Six Months Ended June 30, 2014
Net asset value per Share, beginning of period	$	12.52		$	11.66
Net investment loss(a)		(0.01	)		(0.02	)
Net realized and unrealized gain(b)		0.23			1.10
Net increase in net assets from operations		0.22			1.08
Net asset value per Share, end of period	$	12.74		$	12.74
Total return, at net asset value(c)		1.76	%		9.26	%
Ratio to average net assets:
Net investment loss(d)		(0.25	)%		(0.25	)%
Expenses(d)		0.25	%		0.25	%