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	8,418,328		$ 8,418,328
Purchases of Shares - Shares			400,000
Redemption of Shares - Value	(4,142,665)		$ (4,142,665)
Redemption of Shares - Shares			(200,000)
Net Increase (Decrease) due to Share Transactions, value	4,275,663		$ 4,275,663
Net Increase (Decrease) due to Share Transactions, shares			200,000
Net Income (Loss)
Net Investment Income (Loss)	134,298	$ 3	$ 134,295
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(118,454)	(3)	(118,451)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(530,796)	(11)	(530,785)
Net Income (Loss)	(514,952)	(11)	(514,941)
Net Change in Shareholders' Equity, value	3,760,711	(11)	$ 3,760,722
Net Change in Shareholders' Equity, shares			200,000
Balance - Value at Mar. 31, 2019	33,130,688	$ 828	$ 33,129,860
Balance - Shares at Mar. 31, 2019		40	1,600,000
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	4,059,545		$ 4,059,545
Purchases of Shares - Shares			200,000
Redemption of Shares - Value	(8,027,125)		$ (8,027,125)
Redemption of Shares - Shares			(400,000)
Net Increase (Decrease) due to Share Transactions, value	(3,967,580)		$ (3,967,580)
Net Increase (Decrease) due to Share Transactions, shares			(200,000)
Net Income (Loss)
Net Investment Income (Loss)	76,799	$ 2	$ 76,797
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(127,294)	(3)	(127,291)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(1,123,867)	(22)	(1,123,845)
Net Income (Loss)	(1,174,362)	(23)	(1,174,339)
Net Change in Shareholders' Equity, value	(5,141,942)	(23)	$ (5,141,919)
Net Change in Shareholders' Equity, shares			(200,000)
Balance - Value at Mar. 31, 2020	$ 35,863,814	$ 797	$ 35,863,017
Balance - Shares at Mar. 31, 2020		40	1,800,000