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Creations and Redemptions (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
SIT RISING RATE ETF [Member]
Shares Sold, Shares				975,000
Shares Redeemed, Shares		(1,275,000)	(275,000)	(1,850,000)
Net Increase (Decrease), Shares		(1,275,000)	(275,000)	(875,000)
Shares Sold, Capital Increase (Decrease)				$ 24,297,005
Shares Redeemed, Capital Increase (Decrease)		(30,628,345)	(6,331,666)	24,297,005
Net Increase (Decrease), Capital Increase (Decrease)		$ (30,628,345)	$ (6,331,666)	$ (20,494,740)
BREAKWAVE DRY BULK SHIPPING ETF
Shares Sold, Shares	2,775,000	175,000	2,850,000	175,000
Shares Redeemed, Shares	(50,000)		(300,000)
Net Increase (Decrease), Shares	(50,000)	175,000	2,550,000	175,000
Shares Sold, Capital Increase (Decrease)	$ 21,611,870	$ 1,795,803	$ 22,763,000	$ 1,795,803
Shares Redeemed, Capital Increase (Decrease)	(695,550)		(4,817,327)
Net Increase (Decrease), Capital Increase (Decrease)	$ 20,916,320	$ 1,795,803	$ (17,945,673)	$ 1,795,803

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- Definition

Number of new stock issued during the period.

+ References

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- Definition

Number of stock bought back by the entity at the exercise price or redemption price.

+ References

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- Definition

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- Definition

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+ References

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- Definition

The increase (decrease) during the period in the number of shares issued.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

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