Label	Element	Value
U.S. Global Sea to Sky Cargo ETF \| Mount Vernon Liquid Assets Portfolio, LLC [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	5.90%
U.S. Global Sea to Sky Cargo ETF \| DHT Holdings, Inc. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	5.10%
U.S. Global Sea to Sky Cargo ETF \| Orient Overseas International Ltd. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.90%
U.S. Global Sea to Sky Cargo ETF \| Wallenius Wilhelmsen ASA [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.90%
U.S. Global Sea to Sky Cargo ETF \| COSCO SHIPPING Holdings Co. Ltd. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.90%
U.S. Global Sea to Sky Cargo ETF \| International Seaways, Inc. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.90%
U.S. Global Sea to Sky Cargo ETF \| SITC International Holdings Co. Ltd. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.90%
U.S. Global Sea to Sky Cargo ETF \| Kuehne + Nagel International AG [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.10%
U.S. Global Sea to Sky Cargo ETF \| Global Ship Lease, Inc. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.00%
U.S. Global Sea to Sky Cargo ETF \| Wan Hai Lines, Ltd. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	3.90%
U.S. Global Sea to Sky Cargo ETF \| Cash & Other1 [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	17.80%
U.S. Global Sea to Sky Cargo ETF \| Industrial [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	94.70%
U.S. Global Sea to Sky Cargo ETF \| Consumer, Non-cyclical [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	3.30%
U.S. Global Sea to Sky Cargo ETF \| Cash & Other [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	2.00%
U.S. Global Sea to Sky Cargo ETF \| United States
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	21.90%
U.S. Global Sea to Sky Cargo ETF \| China
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	14.20%
U.S. Global Sea to Sky Cargo ETF \| Hong Kong
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	9.80%
U.S. Global Sea to Sky Cargo ETF \| Norway
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	8.70%
U.S. Global Sea to Sky Cargo ETF \| Bermuda
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	8.60%
U.S. Global Sea to Sky Cargo ETF \| Taiwan
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	5.60%
U.S. Global Sea to Sky Cargo ETF \| Singapore
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	5.30%
U.S. Global Sea to Sky Cargo ETF \| Switzerland
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.10%
U.S. Global Sea to Sky Cargo ETF \| United Kingdom
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.00%

U.S. Global Sea to Sky Cargo ETF | Mount Vernon Liquid Assets Portfolio, LLC [Member]