Acquisitions and Goodwill - Additional Information (Detail) (USD $)	9 Months Ended	12 Months Ended
Nov. 29, 2014 acquisition Store	Mar. 01, 2014 acquisition Store	Nov. 30, 2013	Mar. 02, 2013
Business Acquisition [Line Items]
Goodwill	$ 32,902,000us-gaap_Goodwill	$ 25,608,000us-gaap_Goodwill	$ 24,035,000us-gaap_Goodwill	$ 13,888,000us-gaap_Goodwill
Individually Immaterial Acquisitions
Business Acquisition [Line Items]
Number of acquisitions	4	4
Purchase price to acquire entity	9,570,000	13,837,000
Aggregate contingent consideration	400,000
Number of running stores	15	15
Goodwill	$ 7,255,000	$ 11,647,000

Number of Acquisitions

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Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled beyond one year or the normal operating cycle, if longer.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Represents the number of stores.

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