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CONTRACTS AND AGREEMENTS (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Brokerage commissions $ 28,015 $ 7,785 $ 83,780 $ 18,535
Percentage Of Average Daily Net Assets 0.12% 0.06% 0.12% 0.06%
Rebalancing Investments Transaction [Member]        
Brokerage commissions     $ 78,277 $ 17,062
Percentage Of Average Daily Net Assets 93.43% 92.05% 93.43% 92.05%
Creation And Redemption Activity [Member]        
Brokerage commissions     $ 5,503 $ 1,473
Percentage Of Average Daily Net Assets 6.57% 7.95% 6.57% 7.95%