Summary of Significant Accounting Policies (Details) - USD ($)		Mar. 31, 2021	Jun. 30, 2020
Short-Term Investments			$ 12,866,631
Written Options Contracts			(4,148)
SIT RISING RATE ETF [Member]
Short-Term Investments			4,879,769
Written Options Contracts			(4,148)
SIT RISING RATE ETF [Member] | Fair Value, Inputs, Level 1 [Member]
Short-Term Investments	[1]		4,865,473
Purchased Options Contracts	[1]		14,296
Written Options Contracts	[2]		(4,148)
Futures Contracts	[3]		(5,144)
Total			4,870,477
BREAKWAVE DRY BULK SHIPPING ETF [Member]
Short-Term Investments		$ 10,298,204	7,986,862
Written Options Contracts
BREAKWAVE DRY BULK SHIPPING ETF [Member] | Fair Value, Inputs, Level 1 [Member]
Short-Term Investments	[1]	10,298,204	7,986,862
Futures Contracts	[4]	2,576,110	8,581,555
Total		$ 12,874,314	$ 16,568,417

[1] Included in Investments in securities in the Combined Statements of Assets and Liabilities.

[2] Included in Options Written, at fair value in the Combined Statements of Assets and Liabilities.

[3] Included in Payable on open futures contracts in the Combined Statements of Assets and Liabilities.

[4] Included in Receivable on open futures contracts in the Combined Statements of Assets and Liabilities.