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Investments (Details 1) - Interest Rate Risk [Member] - USD ($) | 3 Months Ended | 9 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2020 | Mar. 31, 2019
SIT RISING RATE ETF [Member] |  |  |  |
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items] |  |  |  |
Location of Gain (Loss) on Derivatives | Net realized loss on investments, futures and options contracts and/or Change in unrealized gain (loss) on investments, futures and options contracts | Net realized gain (loss) on investments, futures and options contracts and/or Change in unrealized gain (loss) on investments, futures and options contracts | Net realized loss on investments, futures and options contracts and/or Change in unrealized gain (loss) on investments, futures and options contracts | Net realized gain (loss) on investments, futures and options contracts and/or Change in unrealized gain (loss) on investments, futures and options contracts
Realized Loss on Derivatives Recognized in Income | $ (167,895) | $ (2,457,815) | $ (420,623) | $ (2,914,522)
Change in Unrealized Gain (Loss) on Derivatives Recognized in Income | $ (444,797) | $ 1,778,789 | $ (76,566) | $ 167,281
BREAKWAVE DRY BULK SHIPPING ETF |  |  |  |
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items] |  |  |  |
Location of Gain (Loss) on Derivatives | Net realized loss on investments and futures and/or Change in unrealized gain (loss) on investments and futures contracts | Net realized loss on investments and futures and/or Change in unrealized gain (loss) on investments and futures contracts | Net realized loss on investments and futures and/or Change in unrealized gain (loss) on investments and futures contracts | Net realized loss on investments and futures and/or Change in unrealized gain (loss) on investments and futures contracts
Realized Loss on Derivatives Recognized in Income | $ (2,727,061) | $ (956,887) | $ (2,388,880) | $ (1,391,126)
Change in Unrealized Gain (Loss) on Derivatives Recognized in Income | $ (1,871,170) | $ (511,380) | $ (1,204,565) | $ (544,960)

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