Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
Apr. 29, 2017	Apr. 30, 2016
Earnings (Loss) Per Share
Net income (loss)	$ (4,507)	$ 311
Weighted-average shares outstanding:
Basic	42,277	42,032
Dilutive effect of common stock equivalents		302
Diluted	42,277	42,334
Basic Earnings (loss) per share	$ (0.11)	$ 0.01
Diluted Earnings (loss) per share	$ (0.11)	$ 0.01
Restricted stock units considered anti-dilutive and excluded in the calculation	171

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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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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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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