Prepaid Assets (Detail) (USD $)	Nov. 29, 2013	May 31, 2013
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Truck shop supplies	$ 388,339	$ 445,504
Insurance deposit	82,959	82,959
Prepaid marketplace spending	225,029	212,026
Deferred advertising fees	708,750
Prepaid insurance	514,311	257,757
Prepaid taxes/licenses	55,256	59,203
Prepaid dues/supplies	166,885	413,100
Other	135,330	84,188
Prepaid assets	$ 2,276,859	$ 1,554,737