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Depreciation and Amortization of Fixed Assets (Detail) - Schedule of depreciation and amortization of fixed assets (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011
Cost of sales	$ 124	$ 135	$ 250	$ 273
Selling, general and administrative expenses	885	1,606	1,826	3,321
Total	$ 1,009	$ 1,741	$ 2,076	$ 3,594

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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