Schedule of Investments (Unaudited) - Futures Contracts - Futures [Member]		6 Months Ended	12 Months Ended
		Jun. 30, 2017 USD ($) Contract	Dec. 31, 2016 USD ($) Contract
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		1.48%	0.34%
Unrealized Appreciation/ (Depreciation)	[1]	$ 642,855	$ 112,424
Notional Value		$ (42,271,503)	$ (32,322,376)
United States of America, Dollars [Member] | ICE FUTURES U.S. [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		1.48%	0.34%
Unrealized Appreciation/ (Depreciation)	[1]	$ 642,855	$ 112,424
Notional Value		$ (42,271,503)	$ (32,322,376)
Number of Contracts | Contract		443	316
Maturity Date		Sep. 18, 2017	Mar. 13, 2017

[1] Unrealized appreciation/(depreciation) is presented above, net by contract.