Summary of Significant Accounting Policies (Details) (Teucrium Natural Gas Fund [Member], USD $)	3 Months Ended		5 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2011	Jun. 30, 2012	May 01, 2012	Dec. 31, 2011	Aug. 01, 2011
Teucrium Natural Gas Fund [Member]
Creations and Redemptions
Common units per Creation Basket	50,000			50,000
Common units per Redemption Basket	50,000			50,000
Minimum level of shares per Redemption Basket	100,000			100,000	100,000
Minimum number of Redemption Baskets	2			2	2
Cash Equivalents
Money market funds	$ 3,200,986			$ 3,200,986		$ 1,277,159
Sponsor Fee and Allocation of Expenses
Annual sponsor fee	1.00%			1.00%
Reduction in expenses due to Sponsor involvement	6,000			10,000
Capped management fee and expenses percentage							1.50%
Reduction in expenses due to Sponsor cap	8,000			8,000
Management fees			$ 3,628