Changes in Carrying Value of Goodwill (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Nov. 30, 2013	May. 30, 2015	May. 31, 2014	Jun. 01, 2013
Goodwill [Line Items]
Goodwill, Beginning balance	$ 1,519	$ 0	$ 1,519
Goodwill acquired	25
Foreign currency translation	127
Impairment of goodwill	$ 1,671	0	1,671	$ 0
Goodwill, Ending balance		$ 0	$ 0	$ 1,519