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Fair Value Measurements (Schedule of Assets and Liabilities Measured at Fair Value) (Details) (Teucrium Soybean Fund [Member], USD $)
Jun. 30, 2013
Dec. 31, 2012
Assets:    
Cash equivalents $ 6,130,910 $ 6,169,205
Commodity futures contracts 35,175 63,200
Total 6,166,085 6,232,405
Liabilities:    
Commodity futures contracts 102,987 284,575
Level 1 [Member]
   
Assets:    
Cash equivalents 6,130,910 6,169,205
Total 6,166,085 6,232,405
Level 1 [Member] | Commodity Contract [Member]
   
Assets:    
Commodity futures contracts 35,175 63,200
Liabilities:    
Commodity futures contracts 102,987 284,575
Level 2 [Member]
   
Assets:    
Cash equivalents      
Total      
Level 2 [Member] | Commodity Contract [Member]
   
Assets:    
Commodity futures contracts      
Liabilities:    
Commodity futures contracts      
Level 3 [Member]
   
Assets:    
Cash equivalents      
Total      
Level 3 [Member] | Commodity Contract [Member]
   
Assets:    
Commodity futures contracts      
Liabilities:    
Commodity futures contracts