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STATEMENTS OF CHANGES IN NET ASSETS (Teucrium Corn Fund [Member], USD $)
 7 Months Ended 12 Months Ended
Dec. 31, 2010
Dec. 31, 2012
Dec. 31, 2011
Teucrium Corn Fund [Member]
      
Operations      
Net income (loss) $ 8,435,983 $ 6,567,726 $ (472,093)
Capital Transactions      
Issuance of shares 39,891,098 51,752,168 92,546,004
Redemption of Shares (5,363,242) (91,901,903) (63,769,329)
Total capital transactions 34,527,856 (40,149,735) 28,776,675
Net change in net assets 42,963,839 33,582,009 28,304,582
Net assets, beginning of period 100 71,268,521 42,963,939
Net assets, end of period $ 42,963,939 $ 37,686,512 $ 71,268,521
Net asset value per share at beginning of period $ 25.0 $ 41.92 $ 39.06
At end of period $ 39.06 $ 44.34 $ 41.92