Statements of Changes in Shareholders' Equity (Unaudited) - USD ($)	Total	General Shares [Member]	Shares [Member]
Balance - Value at Dec. 31, 2019	$ 24,346,129	$ 974	$ 24,345,155
Balance - Shares at Dec. 31, 2019		40	1,000,000
Redemption of Shares - Value	(4,904,621)		$ (4,904,621)
Redemption of Shares - Shares			(200,000)
Net Increase (Decrease) due to Share Transactions, value	(4,904,621)		$ (4,904,621)
Net Increase (Decrease) due to Share Transactions, shares			(200,000)
Net Income (Loss)
Net Investment Income (Loss)	41,558	$ 2	$ 41,556
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(1,220,796)	(63)	(1,220,733)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(259,821)	(13)	(259,808)
Net Income (Loss)	(1,439,059)	(74)	(1,438,985)
Net Change in Shareholders' Equity, value	(6,343,680)	(74)	$ (6,343,606)
Net Change in Shareholders' Equity, shares			(200,000)
Balance - Value at Mar. 31, 2020	18,002,449	$ 900	$ 18,001,549
Balance - Shares at Mar. 31, 2020		40	800,000
Balance - Value at Dec. 31, 2020	12,026,782	$ 962	$ 12,025,820
Balance - Shares at Dec. 31, 2020		40	500,000
Purchases of Shares - Value	15,123,162		$ 15,123,162
Purchases of Shares - Shares			600,000
Net Increase (Decrease) due to Share Transactions, value	15,123,162		$ 15,123,162
Net Increase (Decrease) due to Share Transactions, shares			600,000
Net Income (Loss)
Net Investment Income (Loss)	(25,581)	$ (2)	$ (25,579)
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	571,129	45	571,084
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	55,156	4	55,152
Net Income (Loss)	600,704	47	600,657
Net Change in Shareholders' Equity, value	15,723,866	47	$ 15,723,819
Net Change in Shareholders' Equity, shares			600,000
Balance - Value at Mar. 31, 2021	$ 27,750,648	$ 1,009	$ 27,749,639
Balance - Shares at Mar. 31, 2021		40	1,100,000