v3.26.1
Significant Accounting Policies (Details) - USD ($)
12 Months Ended
Jan. 31, 2026
Jan. 31, 2025
Jan. 31, 2024
Significant Accounting Policies [Line Items]      
Redeemed shares 991,839 368,969 1,521,919
Transaction fee $ 500    
Number Of Authorized Shares Not Disclosed true    
Creations and Redemptions of Shares [Member]      
Significant Accounting Policies [Line Items]      
Redeemed shares 50,000