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Financial Highlights (Details) (Teucrium WTI Crude Oil Fund [Member], USD $)
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Feb. 22, 2011
Teucrium WTI Crude Oil Fund [Member]
      
Net asset value per share at beginning of period $ 39.87 $ 44.45 $ 50
Investment income $ 0.01 $ 0.01  
Net realized and unrealized gain (loss) on commodity futures contracts $ 0.87 $ 2.78  
Total expenses $ (0.15) $ (0.81)  
Net increase (decrease) in net asset value $ 0.73 $ 1.98  
At end of period $ 40.60 $ 46.43 $ 50
Total return 1.83% 4.45%  
Total expense 1.50% 7.02%  
Net investment gain (loss) (1.45%) (6.95%)  
Reduction in expenses due to Sponsor cap $ 5,000    
Reduction in expenses due to Sponsor involvement $ 17,000