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Derivative Instruments and Hedging Activities (Schedule of Fair Value of Derivative Instruments) (Details) (Teucrium Natural Gas Fund [Member], USD $)
Mar. 31, 2013
Dec. 31, 2012
Commodity price    
Asset derivatives $ 268,180 $ 9,550
Liability derivatives    233,919
Commodity Contract [Member]
   
Commodity price    
Asset derivatives 268,180 9,550
Liability derivatives    233,919
Collateral Due From Broker [Member]
   
Commodity price    
Asset derivatives    367,374
Collateral Due To Broker [Member]
   
Commodity price    
Liability derivatives $ 136,990