v3.26.3
Shareholder Report, Line Graph (Details) 197970_US Treasury 2 Year Note ETF_TF_TSR Annual {TF} - USD ($)
12 Months Ended
Aug. 31, 2025
Aug. 31, 2024
Aug. 31, 2023
Aug. 08, 2022
Aug. 31, 2026
F/m US Treasury 2 Year Note ETF          
Account Value [Line Items]          
Line Graph and Table Measure Name         F/m US Treasury 2 Year Note ETF
Accumulated Value $ 10,996 $ 10,573 $ 10,018 $ 10,000 $ 11,236
ICE US Treasury Core Bond Index [Member]          
Account Value [Line Items]          
Line Graph and Table Measure Name         ICE US Treasury Core Bond Index
Accumulated Value 10,414 10,170 9,593 10,000 $ 10,541
ICE BofA U.S. Treasury Current 2 Yr TR [Member]          
Account Value [Line Items]          
Line Graph and Table Measure Name         ICE BofA U.S. Treasury Current 2 Yr TR
Accumulated Value 11,000 10,573 10,015 10,000 $ 11,245
Bloomberg U.S. Treasury Bellwether: 2 Year Total Return USD Unhedged Index [Member]          
Account Value [Line Items]          
Line Graph and Table Measure Name         Bloomberg U.S. Treasury Bellwether: 2 Year Total Return USD Unhedged Index
Accumulated Value $ 11,038 $ 10,602 $ 10,032 $ 10,000 $ 11,292