Financial Highlights (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	Aug. 01, 2011
Teucrium Natural Gas Fund [Member]
Net asset value per share at beginning of period			$ 25.0	$ 13.81
Investment income			$ 0.01	$ 0.01
Net realized and unrealized gain (loss) on commodity futures contracts			$ (1.53)	$ (1.9)
Total expenses			$ (1.59)	$ (0.09)
Net increase (decrease) in net asset value	$ 0.81	$ (2.15)	$ (3.11)	$ (1.98)
At end of period	$ 11.83	$ 21.89	$ 21.89	$ 11.83
Total return			(12.44%)	(14.34%)
Total expense			16.62%	1.52%
Net investment gain (loss)			(16.53%)	(1.45%)
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