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Statements of Cash Flows
 12 Months Ended
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Cash flows from operating activities    
Net Comprehensive Income (Loss) $ (714,735) $ (195,074)
Adjustments to reconcile net comprehensive income (loss) to net cash provided by (used in) operating activities:    
Receivable from accrued interest   94,800
Accrued Sponsor’s fee 7,626 8,619
Net cash provided by (used in) operating activities (707,109) (91,655)
Cash flows from financing activities    
Distributions paid to shareholders 0 (235,745)
Proceeds from purchases of redeemable capital Shares 201,450,598 81,057,573
Redemptions of redeemable capital Shares (209,787,288) (43,761,943)
Net cash provided by (used in) financing activities (8,336,690) 37,059,885
Effect of exchange rate on cash (1,893,910) 3,321,227
Net change in cash (10,937,709) 40,289,457
Cash at beginning of period 150,588,080 110,298,623
Cash at end of period 139,650,371 150,588,080
Supplemental disclosure of cash flow information    
Cash paid for interest $ 0 $ 0