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Financial Highlights (Details) (Teucrium Natural Gas Fund [Member], USD $)
 3 Months Ended 11 Months Ended 12 Months Ended
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2011
Dec. 31, 2012
Teucrium Natural Gas Fund [Member]
                    
Net asset value per share at beginning of period       $ 13.81         $ 25.0 $ 13.81
Investment income                 $ 0.01 $ 0.01
Net realized and unrealized gain (loss) on commodity futures contracts                 $ (9.01) $ (2.08)
Total expenses                 $ (2.19) $ (0.18)
Net increase (decrease) in net asset value $ (1.03) $ 0.76 $ 0.81 $ (2.79) $ (4.4) $ (3.68) $ (2.15) $ (0.96) $ (11.19) $ (2.25)
At end of period $ 11.56       $ 13.81       $ 13.81 $ 11.56
Total return                 (44.76%) (16.29%)
Total expense                 11.59% 1.48%
Net investment gain (loss)                 (11.52%) (1.41%)
Reduction in expenses due to Sponsor involvement                 $ 18,000 $ 12,800
Capped management fee and expenses percentage 1.50%                 1.50%
Reduction in expenses due to Sponsor cap                 $ 24,000 $ 19,200