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Statements of Changes in Shareholders' Capital - USD ($)	1 Months Ended		3 Months Ended	9 Months Ended
	Mar. 31, 2015	[1]	Mar. 31, 2016	Mar. 31, 2016
SIT RISING RATE ETF [Member]
Shareholders' Capital at Beginning of Period	$ 5,001,000		$ 18,159,504	$ 6,061,502
Increase (decrease) in Shareholders' Capital from share transactions	1,245,665		2,384,370	14,437,270
Net increase (decrease) in Shareholders' Capital from share transactions
Addition of 100,000, 100,000, 50,000 and 50,000 shares, respectively	1,245,665		2,384,370	14,437,270
Increase (decrease) in Shareholders' Capital from operations
Net investment income (loss)	(10,840)		(70,845)	(141,270)
Net realized gain (loss)	(11,396)		(719,469)	(726,684)
Change in net unrealized gain (loss)	(156,031)		(250,645)	(127,903)
Net increase (decrease) in Shareholders' Capital from operations	(178,267)		(1,040,959)	(995,857)
Shareholders' Capital at End of Period	6,068,398		19,502,915	19,502,915
ETF MANAGERS GROUP COMMODITY TRUST I [Member]
Shareholders' Capital at Beginning of Period	5,001,000		18,159,504	6,061,502
Increase (decrease) in Shareholders' Capital from share transactions	1,245,665		2,384,370	14,437,270
Net increase (decrease) in Shareholders' Capital from share transactions
Addition of 100,000, 100,000, 50,000 and 50,000 shares, respectively	1,245,665		2,384,370	14,437,270
Increase (decrease) in Shareholders' Capital from operations
Net investment income (loss)	(10,840)		(70,845)	(141,270)
Net realized gain (loss)	(11,396)		(719,469)	(726,684)
Change in net unrealized gain (loss)	(156,031)		(250,645)	(127,903)
Net increase (decrease) in Shareholders' Capital from operations	(178,267)		(1,040,959)	(995,857)
Shareholders' Capital at End of Period	$ 6,068,398		$ 19,502,915	$ 19,502,915
[1] Commencement of investment operations.

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The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

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Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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