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Summary of Significant Accounting Policies (Details) (Teucrium Agricultural Fund [Member], USD $)
 9 Months Ended
Dec. 31, 2012
Aug. 22, 2012
Aug. 02, 2012
Dec. 31, 2011
Teucrium Agricultural Fund [Member]
        
Creations and Redemptions        
Common units per Creation Basket 25,000 50,000    
Common units per Redemption Basket 25,000 50,000    
Minimum level of shares per Redemption Basket minimum level 50,000      
Minimum number of Redemption Baskets 2      
Number of shares outstanding     50,002  
Cash Equivalents        
Money market funds $ 6,419     $ 100
Sponsor Fee and Allocation of Expenses        
Annual sponsor fee 1.00%      
Reduction in expenses due to Sponsor involvement $ 20,800