Share-Based Compensation - Summary of Stock Option Activity (Details) - $ / shares	6 Months Ended
Aug. 04, 2018	Jul. 29, 2017
Number of Options
Outstanding at beginning of period, Number of Shares (in shares)	368,745
Granted, Number of Shares (in shares)	0	0
Exercised, Number of Shares (in shares)	(14,550)
Forfeited or expired, Number of Shares (in shares)	(109,300)
Outstanding at end of period, Number of Shares (in shares)	244,895
Exercisable at end of period, Number of Shares (in shares)	244,895
Weighted Average Exercise Price
Outstanding at beginning of period, Weighted Average Exercise Price (in dollars per share)	$ 12.36
Granted, Weighted Average Exercise Price (in dollars per share)	0
Exercised, Weighted Average Exercise Price (in dollars per share)	5.22
Forfeited or expired, Weighted Average Exercise Price (in dollars per share)	13.40
Outstanding at end of period, Weighted Average Exercise Price (in dollars per share)	12.31
Exercisable at end of period, Weighted Average Exercise Price (in dollars per share)	$ 12.31

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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