v3.26.3
Shareholder Report, Average Annual Return (Details) 197923_US Treasury 7 Year Note ETF_TF_TSR Annual {TF}
12 Months Ended 41 Months Ended
Aug. 31, 2026
Aug. 31, 2026
F/m US Treasury 7 Year Note ETF    
Average Annual Return [Line Items]    
Line Graph and Table Measure Name F/m US Treasury 7 Year Note ETF  
Average Annual Return, Percent 0.08% 1.98%
ICE US Treasury Core Bond Index [Member]    
Average Annual Return [Line Items]    
Line Graph and Table Measure Name ICE US Treasury Core Bond Index  
Average Annual Return, Percent 1.21% 2.23%
ICE BofA Current 7-Year US Treasury Total Return Index [Member]    
Average Annual Return [Line Items]    
Line Graph and Table Measure Name ICE BofA Current 7-Year US Treasury Total Return Index  
Average Annual Return, Percent 0.08% 1.98%
Bloomberg U.S. Treasury Bellwether: 7 Year Total Return USD Unhedged Index [Member]    
Average Annual Return [Line Items]    
Line Graph and Table Measure Name Bloomberg U.S. Treasury Bellwether: 7 Year Total Return USD Unhedged Index  
Average Annual Return, Percent 0.24% 2.15%