Expense Example - Defiance Drone and Modern Warfare ETF - Defiance Drone and Modern Warfare ETF Class	Apr. 30, 2026 USD ($)
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 101
Expense Example, with Redemption, 3 Years	317
Expense Example, with Redemption, 5 Years	551
Expense Example, with Redemption, 10 Years	$ 1,233

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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