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Deferred stock units awarded.

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Employee service share-based compensation, actual tax benefit realized for tax deductions from stock option exercised.

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Number of options granted with exercise price less than fair market value on grant date.

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Share based compensation arrangement by share based payment award maximum number of shares expected to be issued.

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Number of shares of restricted stock granted to each director annually.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity Award Plans - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Aug. 01, 2016	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016	Feb. 03, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of stock options granted with exercise price less than fair market value on grant date		0	0	0
Stock options exercised		0
Total intrinsic value of stock options exercised			$ 5	$ 63
Proceeds from exercise of stock options			6	69
Actual tax benefit realized for tax deductions from stock option exercised			$ 2	$ 24
Stock options granted		0
Weighted average fair value of stock options			$ 2.96	$ 2.58
Performance period		3 years
Cumulative restricted stock granted		747,000
Unrecognized compensation cost		$ 2,739
Weighted-average period recognized compensation cost		1 year 6 months
Stock-based compensation expense		$ 1,154	$ 1,801	$ 2,784
Repurchase of common stock, shares	0	19,149	7,408	15,024
Payments for tax obligations to the tax authorities on exercise or vesting date		$ 57	$ 54	$ 127
Non-employee director
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based payment award, vesting period		1 year
Restricted stock, shares vested		4,000
Board of Directors
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based payment award, vesting period		1 year
Cumulative restricted stock granted		22,000	13,867
Restricted stock, vesting description		The awards will vest at the earlier of 1) one year from the grant date, 2) one day prior to the next annual meeting of stockholders, 3) the end of the grantee’s Board service other than via resignation, or 4) a change in control of the Company (as defined in the 2005 Plan).
Deferred stock units awarded			10,974
Deferred stock units value			$ 75
2005 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options to be issued		3,550,000
Common stock shares issued, restricted stock units or deferred stock units		2,250,000
Common stock available for grant					785,703
2005 Plan \| Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based payment award, vesting period		4 years
Share-based payment award, expiration period		10 years
2005 Plan \| Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based payment award, vesting period		1 year
Awards that may be issued		177,500
2005 Plan \| Maximum \| Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based payment award, expiration period		4 years
2005 Plan \| Minimum \| Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based payment award, expiration period		1 year
Non-executive chairman
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based payment award, vesting period		1 year
Restricted stock, shares vested		6,000
2016 Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cumulative restricted stock units available for future declaration		0
2015 Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cumulative restricted stock units available for future declaration		0
2014 Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cumulative restricted stock units available for future declaration		0