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Statements of Cash Flows
 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) $ (94,045) $ (157,338)  
Adjustments to reconcile net comprehensive income (loss) to net cash provided by (used in) operating activities:      
Accrued Sponsor’s fee (5,569) (578)  
Net cash provided by (used in) operating activities (99,614) (157,916)  
Cash flows from financing activities      
Proceeds from purchases of redeemable capital Shares 3,583,297 11,566,005  
Redemptions of redeemable capital Shares (3,528,348) (7,715,269)  
Net cash provided by (used in) financing activities 54,949 3,850,736  
Effect of exchange rate on cash 3,141,434 (2,099,079)  
Net change in cash 3,096,769 1,593,741  
Cash at beginning of period 97,441,463 157,666,229 $ 157,666,229
Cash at end of period 100,538,232 159,259,970 $ 97,441,463
Supplemental disclosure of cash flow information      
Cash paid for interest $ 0 $ 0