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STATEMENTS OF CHANGES IN NET ASSETS (Teucrium Natural Gas Fund [Member], USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Teucrium Natural Gas Fund [Member]
   
Operations    
Net income (loss) $ 367,368 $ (377,271)
Capital Transactions    
Issuance of shares    648,677
Redemption of Shares (1,211,768)   
Total capital transactions (1,211,768) 648,677
Net change in net assets (844,400) 271,406
Net assets, beginning of period 4,625,621 1,381,367
Net assets, end of period $ 3,781,221 $ 1,652,773
Net asset value per share at beginning of period $ 11.56 $ 13.81
At end of period $ 12.60 $ 11.02