Schedule of Investments - Futures Contracts - Futures [Member]		12 Months Ended
		Dec. 31, 2016 USD ($) Contract	Dec. 31, 2015 USD ($) Contract
Schedule of Investments [Line Items]
Percentage of Shareholders’ Equity		0.34%	(1.02%)
Unrealized Appreciation/ (Depreciation)	[1]	$ 112,424	$ (394,359)
Notional Value		$ (32,322,376)	$ (39,399,255)
United States of America, Dollars [Member] | ICE FUTURES U.S. [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders’ Equity		0.34%	(1.02%)
Unrealized Appreciation/ (Depreciation)	[1]	$ 112,424	$ (394,359)
Notional Value		$ (32,322,376)	$ (39,399,255)
Number of Contracts | Contract		316	399
Maturity Date		Mar. 13, 2017	Mar. 14, 2016

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