Financial Highlights (Details) (Teucrium Corn Fund [Member], USD $)	3 Months Ended								7 Months Ended	12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Jan. 01, 2013
Teucrium Corn Fund [Member]
Net asset value per share at beginning of period				$ 41.92				$ 39.06	$ 25.0	$ 41.92	$ 39.06
Investment income									$ 0.04	$ 0.04	$ 0.03
Net realized and unrealized gain (loss) on commodity futures contracts									$ 14.84	$ 4.7	$ 3.95
Total expenses									$ (0.82)	$ (2.32)	$ (1.12)
Net increase (decrease) in net asset value	$ (4.06)	$ 6.38	$ 2.85	$ (2.75)	$ 1.81	$ (0.28)	$ (3.87)	$ 5.2	$ 14.06	$ 2.42	$ 2.86
At end of period	$ 44.34				$ 41.92				$ 39.06	$ 44.34	$ 41.92
Total return									56.24%	5.77%	7.32%
Total expense									3.50%	5.31%	2.55%
Net investment gain (loss)									(3.30%)	(5.23%)	(2.49%)
Maximum daily expense accrual	$ 7,926									$ 7,926		$ 6,379
Reduction in expenses due to Sponsor involvement										$ 124,000