Statement of Changes in Shareholders' Equity (Unaudited) - USD ($) | Total | General Shares [Member] | Shares [Member] |
Balance - Value at Dec. 31, 2018 | $ 29,369,977 | $ 839 | $ 29,369,138 |
Balance - Shares at Dec. 31, 2018 | | 40 | 1,400,000 |
Purchases of Shares - Value | 16,738,833 | | $ 16,738,833 |
Purchases of Shares - Shares | | | 800,000 |
Redemption of Shares - Value | (8,261,775) | | $ (8,261,775) |
Redemption of Shares - Shares | | | (400,000) |
Net Increase (Decrease) due to Share Transactions, value | 8,477,058 | | $ 8,477,058 |
Net Increase (Decrease) due to Share Transactions, shares | | | 400,000 |
Net Income (Loss) | | | |
Net Investment Income (Loss) | 406,721 | $ 9 | $ 406,712 |
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts | (1,193,058) | (25) | (1,193,033) |
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts | (687,588) | (15) | (687,573) |
Net Income (Loss) | (1,473,925) | (31) | (1,473,894) |
Net Change in Shareholders' Equity, value | 7,003,133 | (31) | $ 7,003,164 |
Net Change in Shareholders' Equity, shares | | | 400,000 |
Balance - Value at Sep. 30, 2019 | 36,373,110 | $ 808 | $ 36,372,302 |
Balance - Shares at Sep. 30, 2019 | | 40 | 1,800,000 |
Balance - Value at Jun. 30, 2019 | 37,687,518 | $ 838 | $ 37,686,680 |
Balance - Shares at Jun. 30, 2019 | | 40 | 1,800,000 |
Purchases of Shares - Value | 4,136,842 | | $ 4,136,842 |
Purchases of Shares - Shares | | | 200,000 |
Redemption of Shares - Value | (4,119,110) | | $ (4,119,110) |
Redemption of Shares - Shares | | | (200,000) |
Net Increase (Decrease) due to Share Transactions, value | 17,732 | | $ 17,732 |
Net Income (Loss) | | | |
Net Investment Income (Loss) | 135,518 | $ 7 | 135,511 |
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts | (831,241) | (22) | (831,219) |
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts | (636,417) | (15) | (636,402) |
Net Income (Loss) | (1,332,140) | (30) | (1,332,110) |
Net Change in Shareholders' Equity, value | (1,314,408) | (30) | (1,314,378) |
Balance - Value at Sep. 30, 2019 | 36,373,110 | $ 808 | $ 36,372,302 |
Balance - Shares at Sep. 30, 2019 | | 40 | 1,800,000 |
Balance - Value at Dec. 31, 2019 | 41,005,756 | $ 820 | $ 41,004,936 |
Balance - Shares at Dec. 31, 2019 | | 40 | 2,000,000 |
Purchases of Shares - Value | 53,860,567 | | $ 53,860,567 |
Purchases of Shares - Shares | | | 2,600,000 |
Redemption of Shares - Value | (16,297,601) | | $ (16,297,601) |
Redemption of Shares - Shares | | | (800,000) |
Net Increase (Decrease) due to Share Transactions, value | 37,562,966 | | $ 37,562,966 |
Net Increase (Decrease) due to Share Transactions, shares | | | 1,800,000 |
Net Income (Loss) | | | |
Net Investment Income (Loss) | (71,403) | $ (1) | $ (71,402) |
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts | 1,777,394 | 32 | 1,777,362 |
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts | (835,926) | (15) | (835,911) |
Net Income (Loss) | 870,065 | 16 | 870,049 |
Net Change in Shareholders' Equity, value | 38,433,031 | 16 | $ 38,433,015 |
Net Change in Shareholders' Equity, shares | | | 1,800,000 |
Balance - Value at Sep. 30, 2020 | 79,438,787 | $ 836 | $ 79,437,951 |
Balance - Shares at Sep. 30, 2020 | | 40 | 3,800,000 |
Balance - Value at Jun. 30, 2020 | 52,620,587 | $ 810 | $ 52,619,777 |
Balance - Shares at Jun. 30, 2020 | | 40 | 2,600,000 |
Purchases of Shares - Value | 33,581,180 | | $ 33,581,180 |
Purchases of Shares - Shares | | | 1,600,000 |
Redemption of Shares - Value | (8,270,476) | | $ (8,270,476) |
Redemption of Shares - Shares | | | (400,000) |
Net Increase (Decrease) due to Share Transactions, value | 25,310,704 | | $ 25,310,704 |
Net Increase (Decrease) due to Share Transactions, shares | | | 1,200,000 |
Net Income (Loss) | | | |
Net Investment Income (Loss) | (112,995) | $ (2) | $ (112,993) |
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts | 1,722,055 | 31 | 1,722,024 |
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts | (101,564) | (3) | (101,561) |
Net Income (Loss) | 1,507,496 | 26 | 1,507,470 |
Net Change in Shareholders' Equity, value | 26,818,200 | 26 | $ 26,818,174 |
Net Change in Shareholders' Equity, shares | | | 1,200,000 |
Balance - Value at Sep. 30, 2020 | $ 79,438,787 | $ 836 | $ 79,437,951 |
Balance - Shares at Sep. 30, 2020 | | 40 | 3,800,000 |