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Financial Highlights (Details) (Teucrium Natural Gas Fund [Member], USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Jan. 31, 2011
Teucrium Natural Gas Fund [Member] |  |  |
Net asset value per share at beginning of period | $ 11.56 | $ 13.81 | $ 25
Investment income | $ 0.00 | $ 0.00 |
Net realized and unrealized gain (loss) on commodity futures contracts | $ 1.08 | $ (2.75) |
Total expenses | $ (0.04) | $ (0.04) |
Net increase (decrease) in net asset value | $ 1.04 | $ (2.79) |
At end of period | $ 12.60 | $ 11.02 | $ 25
Total return | 9.00% | (20.20%) |
Total expense | 1.47% | 1.57% |
Net investment gain (loss) | (1.42%) | (1.51%) |
Reduction in expenses due to Sponsor involvement | $ 19,000 | $ 3,800 |
Capped management fee and expenses percentage | 1.50% |  |

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