XML 42 R27.htm IDEA: XBRL DOCUMENT v3.8.0.1
Organization (Details Narrative) - USD ($)
3 Months Ended
Jan. 08, 2015
Sep. 26, 2014
Sep. 30, 2017
Jan. 27, 2016
Common unit, issued     50,000  
Minimum [Member]        
Percentage of funds asset     5.00%  
Percentage of treasury instrument     3.00%  
Minimum [Member] | Two Year Maturity Treasury Instruments [Member]        
Expected range for duration weighted percentage     30.00%  
Minimum [Member] | Ten Year Maturity Treasury Instruments [Member]        
Expected range for duration weighted percentage     5.00%  
Maximum [Member]        
Percentage of funds asset     15.00%  
Percentage of treasury instrument     10.00%  
Maximum [Member] | Five Year Maturity Treasury Instruments [Member]        
Expected range for duration weighted percentage     70.00%  
Maximum [Member] | Ten Year Maturity Treasury Instruments [Member]        
Expected range for duration weighted percentage     25.00%  
ETF Managers Capital LLC [Member]        
Proceeds from contributed capital   $ 1,000    
Number of shares exchanged   40    
Share price (in dollars per share)   $ 25.00    
Sit Fixed Income Advisors II, LLC [Member]        
Proceeds from contributed capital $ 5,000,000      
Share price (in dollars per share) $ 25.00      
Percentage of fee paid       0.50%