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Organization and Operation (Details) (Teucrium Soybean Fund [Member], USD $)
 1 Months Ended 3 Months Ended
Sep. 16, 2011
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Mar. 04, 2012
Dec. 31, 2011
Jun. 17, 2011
Common units per Creation Basket   25,000     50,000    
Common units registered             10,000,000
Number of shares issued 100,000            
Value of shares issued $ 2,500,000 $ 1,242,729 $ 4,154,488        
Net asset value per share $ 25 $ 23.65 $ 24.06 $ 24.13   $ 21.86  
Second to Expire CBOT Soybean Futures Contract [Member]
              
Benchmark percent   35.00%          
Third to Expire CBOT Soybean Futures Contract [Member]
              
Benchmark percent   30.00%          
CBOT Soybean Futures Contract Expiring November Following Third To Expire Contract [Member]
              
Benchmark percent   35.00%