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Note 8 - Financial Highlights (Details) - Financial Highlights (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2014
Financial Highlights [Abstract] |  |  |  |
Net asset value per Share, beginning of period | $ 20.04 |  | $ 18.77 |
Net decrease in net assets from operations | $ (3.63) |  | $ (2.36) |
Net asset value per Share, end of period | $ 16.41 | [1] | $ 16.41 | [1]
Total return, at net asset value(c) | (18.11%) | [2] | (12.57%) | [2]
Ratio to average net assets: |  |  |  |
Net investment loss(d) | (0.50%) | [3] | (0.50%) | [3]
Expenses(d) | 0.50% | [3] | 0.50% | [3]
Net investment loss(a) | $ (0.02) | [4] | $ (0.07) | [4]
Net realized and unrealized loss(b) | $ (3.61) | [5] | $ (2.29) | [5]
[1] | Effective January 1, 2014, the Trust qualifies as an investment company for accounting purposes. Disclosure of net asset value per Share is required for investment companies. Please refer to Note 2B.
[2] | Based on the change in net asset value of a Share during the period. Percentage is not annualized.
[3] | Percentage is annualized.
[4] | Based on average Shares outstanding during the period.
[5] | The amounts reported for a Share outstanding may not accord with the change in aggregate gains and losses on investment for the period due to the timing of Trust Share transactions in relation to the fluctuating fair values of the Trust's underlying investment.

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- Definition Amount to be paid per share that is classified as temporary equity by entity upon redemption. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 28 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (27) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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