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Agreements (Details Textual) - USD ($) | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Feb. 19, 2016 | Jan. 27, 2016 | Nov. 30, 2015 | Mar. 31, 2015 | Mar. 31, 2016 | Mar. 31, 2016
Advisory Services Management Fees Percentage |  |  |  |  |  |  | 0.15%
Fund Expenses Annual Rate Percentage |  |  |  |  |  |  | 1.50%
Assets Under Management Percentage | 0.05% |  |  |  |  |  | 0.05%
Percentage of Brokerage Commissions and Fees |  |  |  |  |  |  | 0.126%
Trustee Fees |  |  |  | $ 324 |  | $ 1,243 | $ 3,755
Percentage of funds average daily net assets |  |  |  |  |  |  | 1.50%
ETF Managers Capital LLC [Member] |  |  |  |  |  |  |
Fund Expenses Annual Rate Percentage |  | 0.50% |  |  |  |  |
Waiver Of Commodity Trading Advisor Fees |  |  |  | 2,214 |  | 22,205 | $ 36,620
Expenses Absorbed By Sponsor |  |  |  | 53,753 |  | 49,362 | 206,591
SIT RISING RATE ETF [Member] |  |  |  |  |  |  |
Waiver Of Commodity Trading Advisor Fees |  |  |  | 2,214 | [1] | 22,205 | 36,620
Expense Related to Distribution or Servicing and Underwriting Fees |  |  |  | 1,685 | [1] | 3,729 | 11,269
Noninterest Expense Commission Expense |  |  |  | 1,352 | [1] | 8,648 | 18,571
Costs and Expenses |  |  |  | 66,807 | [1] | 153,251 | 396,596
Expenses Absorbed By Sponsor |  |  |  | 53,753 | [1] | 49,362 | 206,591
Management Fee Expense |  |  |  | 2,106 | [1] | 6,216 | 15,642
Administrative And Other Expenses Absorbed By Sponsor |  |  |  | $ 64,593 |  | 131,046 | $ 359,976
Distributor [Member] |  |  |  |  |  |  |
Assets Under Management Percentage |  |  |  |  |  |  | 0.02%
Payments for Fees |  |  |  |  |  |  | $ 15,000
Esposito Securities LLC [Member] |  |  |  |  |  |  |
Assets Under Management Percentage |  |  | 0.02% |  |  |  |
Custody Services [Member] |  |  |  |  |  |  |
Assets Under Management Percentage |  |  |  |  |  |  | 0.01%
Sponsors Advisory Services [Member] |  |  |  |  |  |  |
Management Fee Expense |  |  |  |  |  |  | $ 75,000
Minimum [Member] |  |  |  |  |  |  |
Accrued Professional Fees, Current | $ 50,000 |  |  |  |  | $ 45,000 | 45,000
Custody Fees | $ 4,800 |  |  |  |  |  | $ 4,800
Minimum [Member] | Esposito Securities LLC [Member] |  |  |  |  |  |  |
Payments for Fees |  |  | $ 15,000 |  |  |  |
[1] | Commencement of investment operations.

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