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Statements of Cash Flows (Unaudited)
 3 Months Ended 12 Months Ended
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
Cash flows from operating activities      
Net Comprehensive Income (Loss) $ (527,541) $ (747,550)  
Adjustments to reconcile net comprehensive income (loss) to net cash provided by (used in) operating activities:      
Accrued Sponsor’s fee (7,816) (3,462)  
Accrued interest expense (12,883) (4,680)  
Net cash provided by (used in) operating activities (548,240) (755,692)  
Cash flows from financing activities      
Proceeds from purchases of redeemable capital Shares 89,158,392 73,791,699  
Redemptions of redeemable capital Shares (108,633,073) (79,236,071)  
Net cash provided by (used in) financing activities (19,474,681) (5,444,372)  
Effect of exchange rate on cash (5,739,486) (12,929,992)  
Net change in cash (25,762,407) (19,130,056)  
Cash at beginning of period 211,643,424 327,764,221 $ 327,764,221
Cash at end of period 185,881,017 308,634,165 $ 211,643,424
Supplemental disclosure of cash flow information      
Cash paid for interest $ 341,229 $ 423,027