| Label | Element | Value |
|---|---|---|
| Leverage Shares 2X Long DUOL Daily ETF | Total Return Swaps [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 26.10% |
| Leverage Shares 2X Long DUOL Daily ETF | Money Market Funds [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 7.80% |
| Leverage Shares 2X Long DUOL Daily ETF | Cash & Other [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 66.10% |