Note 8 - Financial Highlights (Tables)

12 Months Ended

Dec. 31, 2014

Financial Highlights [Abstract]

Financial Highlights [Table Text Block]

	Year Ended December 31, 2014
Net asset value per Share, beginning of period	$	11.66
Net investment loss(a)		(0.03	)
Net realized and unrealized loss(b)		(0.02	)
Net decrease in net assets from operations		(0.05	)
Net asset value per Share, end of period	$	11.61
Total return, at net asset value(c)		(0.43	)%
Ratio to average net assets:
Net investment loss		(0.25	)%
Expenses		0.25	%