Schedule of Investments (Unaudited) - Futures Contracts - USD ($)		Mar. 31, 2016	Dec. 31, 2015
Schedule Of Investments [Line Items]
Unrealized Appreciation/ (Depreciation) as a Percentage of Shareholders’ Equity		7.29%	(3.90%)
Unrealized Appreciation/ (Depreciation)	[1]	$ 15,881,662	$ (5,416,324)
Notional Market Value		$ 217,835,700	$ 138,855,680
COMEX Gold (1,307 contracts, settlement date August 29, 2016) [Member]
Schedule Of Investments [Line Items]
Unrealized Appreciation/ (Depreciation) as a Percentage of Shareholders’ Equity			(3.90%)
Unrealized Appreciation/ (Depreciation)	[1]		$ (5,416,324)
Notional Market Value			$ 138,855,680
Total Commodity Futures Contracts Purchased [Member] | COMEX Gold (1,761 contracts, settlement date August 29, 2016) [Member]
Schedule Of Investments [Line Items]
Unrealized Appreciation/ (Depreciation) as a Percentage of Shareholders’ Equity		7.29%
Unrealized Appreciation/ (Depreciation)	[1]	$ 15,881,662
Notional Market Value		$ 217,835,700

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