Statements of Income and Expenses - USD ($)		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income
Interest Income		$ 2,271,490	$ 336,658	$ 272,069
Dividends from Affiliates		50,015
Total Income		2,321,505	336,658	272,069
Expenses
Management Fee		6,349,708	8,897,003	5,742,352
Brokerage Commissions and Fees		209,040	367,529	498,823
Interest Expense	[1]	14,496	25,211
Total Expenses		6,573,244	9,289,743	6,241,175
Less: Waivers		(25,204)
Net Expenses		6,548,040	9,289,743	6,241,175
Net Investment Income (Loss)		(4,226,535)	(8,953,085)	(5,969,106)
Net Realized Gain (Loss) on
United States Treasury Obligations		3,553	2,884	7,437
Currency Futures Contracts		38,971,461	79,589,339	79,130,173
Net Realized Gain (Loss)		38,975,014	79,592,223	79,137,610
Net Change in Unrealized Gain (Loss) on
United States Treasury Obligations		(59,876)	(4,287)	19,016
Currency Futures Contracts		(7,087,803)	(10,493,639)	20,149,887
Net Change in Unrealized Gain (Loss)		(7,147,679)	(10,497,926)	20,168,903
Net Realized and Net Change in Unrealized Gain (Loss) on United States Treasury Obligations and Currency Futures Contracts		31,827,335	69,094,297	99,306,513
Net Income (Loss)		$ 27,600,800	$ 60,141,212	$ 93,337,407

[1] Interest Expense for the years ended December 31, 2016 and 2015 represents interest expense on overdraft balances. These amounts are included in Interest Income for the year ended December 31, 2014.