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Earnings (Loss) Per Share - Computation of Basic and Diluted Earnings (Loss) Per Common Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	May 03, 2014	May 04, 2013
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Net income (loss)	$ (3,368)	$ 4,459
Weighted-average shares of common stock outstanding:
Basic	34,441	33,229
Dilutive effect of common stock equivalents
Diluted	34,441	33,229
Basic earnings (loss) per share	$ (0.10)	$ 0.13
Diluted earnings (loss) per share	$ (0.10)	$ 0.13

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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