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Commitments and Contingencies (Narrative) (Detail) - USD ($)
12 Months Ended
May. 29, 2015
May. 30, 2014
Commitments and Contingencies Disclosure [Abstract]    
Rent expense $ 725,947 $ 1,200,883
Current annual obligation under operating lease agreement 151,102  
Letter of credit outstanding $ 1,850,000 $ 1,850,000
Letter of credit, commitment fee percentage 0.75% 0.75%