Summary of Significant Accounting Policies (Details) (Teucrium Corn Fund [Member], USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	May 01, 2012	Mar. 05, 2012	Feb. 01, 2012	Jan. 31, 2012	Dec. 31, 2011
Teucrium Corn Fund [Member]
Creations and Redemptions
Common units per Creation Basket	25,000		25,000			25,000	50,000	100,000
Common units per Redemption Basket	25,000		25,000			25,000	50,000	100,000
Minimum level of shares per Redemption Basket	50,000		50,000		50,000
Minimum number of Redemption Baskets	2		2		2
Cash Equivalents
Money market funds	$ 38,821,735		$ 38,821,735						$ 49,022,506
United States Treasury Bills with a maturity of three months or less	14,999,555		14,999,555						19,999,830
Sponsor Fee and Allocation of Expenses
Annual sponsor fee	1.00%		1.00%
Management fees	$ 141,648	$ 284,223	$ 312,251	$ 438,468