| Label | Element | Value |
|---|---|---|
| F/m US Treasury 6 Month Bill ETF | United States Treasury Bill [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 100.00% |
| F/m US Treasury 6 Month Bill ETF | Government [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 100.00% |