Intangible Assets Subject to Amortization and Amortization Expense (Detail) (USD $) In Thousands, unless otherwise specified	Aug. 30, 2014	May 31, 2014
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	$ 1,051	$ 1,053
Finite Lived Intangible Assets Accumulated Amortization	231	210
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	29	29
Finite Lived Intangible Assets Accumulated Amortization	21	18
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	975	977
Finite Lived Intangible Assets Accumulated Amortization	194	178
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	47	47
Finite Lived Intangible Assets Accumulated Amortization	$ 16	$ 14