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Agreements (Details)
$ in Millions
Sep. 30, 2022
USD ($)
Agreements (Details) [Line Items]  
Sub-advisory fee rate 0.25%
Average daily net assets (in Dollars) $ 35
SVIX [Member]  
Agreements (Details) [Line Items]  
Average daily net assets rate 1.35%
UVIX [Member]  
Agreements (Details) [Line Items]  
Average daily net assets rate 1.65%