Net Asset Value and Financial Highlights

9 Months Ended

Mar. 31, 2021

Net Asset Value And Financial Highlights [Abstract]

Net Asset Value and Financial Highlights

(10) Net Asset Value and Financial Highlights

The Funds are presenting, as applicable, the following net asset value and financial highlights related to investment performance for a Share outstanding throughout the three month and nine months ended March 31, 2021 and March 31, 2020, respectively. The net investment income and total expense ratios are calculated using average net assets. The net asset value presentation is calculated by dividing each Fund's net assets by the average daily number of Shares outstanding. The net investment income (loss) and expense ratios have been annualized. The total return is based on the change in net asset value and market value of the Shares during the period. An individual investor's return and ratios may vary based on the timing of their transactions in Fund Shares.

	THREE MONTHS ENDED MARCH 31, 2021			THREE MONTHS ENDED MARCH 31, 2020
	BREAKWAVE DRY BULK SHIPPING ETF			BREAKWAVE DRY BULK SHIPPING ETF			SIT RISING RATE ETF
Net Asset Value
Net asset value per Share, beginning of period	$	7.93		$	15.37		$	22.96
Net investment income (loss)		(0.16	)		(0.11	)		0.02
Net realized and unrealized gain (loss)		9.04			(8.76	)		(2.45	)
Net Income (Loss)		8.88			(8.87	)		(2.43	)
Net Asset Value per Share, end of period	$	16.81		$	6.50		$	20.53
Market Value per Share, end of period	$	16.92		$	6.39		$	20.53
Ratios to Average Net Assets*
Expense Ratio***		4.91	%		7.04	%		1.08	%
Expense Ratio*** before Waiver/Assumption		5.16	%		12.37	%		8.41	%
Net Investment Income (Loss)		(4.90	%)		(6.10	%)		0.43	%
Total Return, at Net Asset Value**		111.98	%		(57.71	%)		(10.58	%)
Total Return, at Market Value**		119.74	%		(58.64	%)		(10.62	%)

* Percentages are annualized

** Percentages are not annualized

*** For Breakwave Dry Bulk Shipping ETF, Fund expenses have been capped at 3.50% of average daily net assets, plus brokerage commissions, interest expense, and extraordinary expenses, if any. Prior to the liquidation of Sit Rising Rate ETF, Fund expenses had been capped at 1.00% of average daily net assets, plus brokerage commissions, interest expense, and extraordinary expenses.

	NINE MONTHS ENDED MARCH 31, 2021			NINE MONTHS ENDED MARCH 31, 2020
	BREAKWAVE DRY BULK SHIPPING ETF			BREAKWAVE DRY BULK SHIPPING ETF			SIT RISING RATE ETF
Net Asset Value
Net asset value per Share, beginning of period	$	7.70		$	13.25		$	22.70
Net investment income (loss)		(0.31	)		(0.34	)		0.14
Net realized and unrealized gain (loss)		9.42			(6.41	)		(2.31	)
Net Income (Loss)		9.11			(6.75	)		(2.17	)
Net Asset Value per Share, end of period		16.81		$	6.50		$	20.53
Market Value per Share, end of period	$	16.92		$	6.39		$	20.53
Ratios to Average Net Assets*
Expense Ratio***		4.52	%		6.19	%		1.08	%
Expense Ratio*** before Waiver/Assumption		4.69	%		17.62	%		7.09	%
Net Investment Income (Loss)		(4.52	%)		(4.96	%)		0.86	%
Total Return, at Net Asset Value**		118.31	%		(50.94	%)		(9.56	%)
Total Return, at Market Value**		128.96	%		(51.41	%)		(9.68	%)

* Percentages are annualized

** Percentages are not annualized

*** For Breakwave Dry Bulk Shipping ETF, Fund expenses have been capped at 3.50% of average daily net assets, plus brokerage commissions, interest expense, and extraordinary expenses, if any. Prior to the liquidation of Sit Rising Rate ETF, Fund expenses had been capped at 1.00% of average daily net assets, plus brokerage commissions, interest expense, and extraordinary expenses.