Prepaid Assets (Detail) (USD $)	Aug. 30, 2013	May 31, 2013
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Truck shop supplies	$ 427,779	$ 445,504
Insurance deposit	82,959	82,959
Prepaid marketplace spending	220,276	212,026
Deferred advertising fees	1,063,125
Prepaid insurance	555,997	257,757
Prepaid taxes/licenses	73,196	59,203
Prepaid dues/supplies	160,091	413,100
Other	178,044	84,188
Prepaid assets	$ 2,761,467	$ 1,554,737