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Schedule of Investments - SIT RISING RATE ETF [Member] | 6 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2015 USD ($) Contracts shares | Mar. 31, 2016 USD ($) Contracts shares
Investment Owned, at Fair Value | $ 6,061,502 |  | $ 19,502,915 |
Investment Owned, Balance, Principal Amount | 6,608 |  | 48,032 |
US Treasury Securities [Member] |  |  |  |
Investment Owned, at Fair Value |  |  | 18,248,996 |
First American US Treasury Money Market Fund [Member] |  |  |  |
Investment Owned, at Fair Value |  |  | 681,076 |
Purchased Options [Member] |  |  |  |
Investment Owned, at Fair Value | $ 16,500 |  | $ 8,375 |
Purchased Options [Member] | CBT U.S. Treasury 10 Year Note [Member] |  |  |  |
Investment Owned, Balance, Contracts | Contracts | 22 |  | 67 |
Investment Owned, at Fair Value | $ 16,500 |  | $ 8,375 |
Short-term Investments [Member] |  |  |  |
Investment Owned, at Fair Value | $ 5,661,952 |  | 18,930,072 |
Short-term Investments [Member] | US Treasury Securities [Member] |  |  |  |
Investment Owned, at Fair Value |  |  | 18,248,996 |
Investment Owned, Balance, Principal Amount |  |  | $ 18,250,000 |
Short-term Investments [Member] | First American US Treasury Money Market Fund [Member] |  |  |  |
Investment Owned, Balance, Shares | shares | 5,661,952 | [1] | 681,076 | [2]
Investment Owned, at Fair Value | $ 5,661,952 | [1] | $ 681,076 | [2]
Investments [Member] |  |  |  |
Investment Owned, at Fair Value | 5,678,452 |  | 18,938,447 |
Assets in Excess of Other Liabilities [Member] |  |  |  |
Investment Owned, at Fair Value | 383,050 | [3] | 564,468 | [4]
Written Options Contracts [Member] |  |  |  |
Investment Owned, at Fair Value | $ (27,070) |  | $ (190,117) |
Written Options Contracts [Member] | CBT U.S. Treasury 5 Year Note [Member] |  |  |  |
Investment Owned, Balance, Contracts | Contracts | 45 |  | 157 |
Investment Owned, at Fair Value | $ (27,070) |  | $ (190,117) |
Short Futures Contracts [Member] | CBT U.S. Treasury 5 Year Note [Member] |  |  |  |
Investment Owned, Balance, Contracts | Contracts | 24 |  | 77 |
Investment Owned, Unrealized Gain/(Loss) | $ 9,187 |  | $ 3,500 |
Short Futures Contracts [Member] | CBT U.S. Treasury 2 Year Note [Member] |  |  |  |
Investment Owned, Balance, Contracts | Contracts | 63 |  | 190 |
Investment Owned, Unrealized Gain/(Loss) | $ (2,579) |  | $ 44,532 |
[1] | Annualized seven-day yield as of June 30, 2015
[2] | Annualized seven-day yield as of March 31, 2016
[3] | $411,045 of cash is pledged as collateral for futures contracts and written options
[4] | $731,483 of cash is pledged as collateral for futures contracts and written options

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