| Label | Element | Value | ||||
|---|---|---|---|---|---|---|
| Roundhill Uranium ETF | Sprott Physical Uranium Trust [Member] | ||||||
| Holdings [Line Items] | oef_HoldingsLineItems | |||||
| Percent of Total Investments | oef_PctOfTotalInv | 90.60% | ||||
| Roundhill Uranium ETF | Yellow Cake PLC [Member] | ||||||
| Holdings [Line Items] | oef_HoldingsLineItems | |||||
| Percent of Total Investments | oef_PctOfTotalInv | 7.40% | ||||
| Roundhill Uranium ETF | First American Government Obligations Fund [Member] | ||||||
| Holdings [Line Items] | oef_HoldingsLineItems | |||||
| Percent of Total Investments | oef_PctOfTotalInv | 6.30% | ||||
| Roundhill Uranium ETF | United States Treasury Bill [Member] | ||||||
| Holdings [Line Items] | oef_HoldingsLineItems | |||||
| Percent of Total Investments | oef_PctOfTotalInv | 84.00% | [1] | |||
| Roundhill Uranium ETF | Cash & Other [Member] | ||||||
| Holdings [Line Items] | oef_HoldingsLineItems | |||||
| Percent of Total Investments | oef_PctOfTotalInv | 100.00% | ||||
| ||||||