Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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-Name Accounting Standards Codification

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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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Unrecognized cost of unvested options awarded to employees as compensation.

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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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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 weighted average fair value at grant date for nonvested equity-based awards issued 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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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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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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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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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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Number of share instruments newly issued under a share-based compensation plan.

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Grants Available Upon Meeting Target

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Share-based Compensation Arrangement by Share-based Payment Award, Number of Plans With Shares Available For Grant

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Stock-Based Compensation (Details Textual) (USD $)	3 Months Ended		9 Months Ended					9 Months Ended								9 Months Ended
Stock-Based Compensation (Details Textual) (USD $)	Nov. 02, 2013 plan	Oct. 27, 2012	Nov. 02, 2013 plan	Oct. 27, 2012	Nov. 02, 2013 Common Stock Class A [Member]	May 19, 2010 Common Stock Class A [Member] 2005 Plan [Member]	Jul. 20, 2005 Common Stock Class A [Member] 2005 Plan [Member]	Nov. 02, 2013 Stock Options [Member]	Nov. 02, 2013 Stock Options [Member] Minimum [Member]	Nov. 02, 2013 Stock Options [Member] Maximum [Member]	Nov. 02, 2013 Restricted Stock [Member] 2005 Plan [Member]	Oct. 27, 2012 Restricted Stock [Member] 2005 Plan [Member]	Nov. 02, 2013 Restricted Stock [Member] Minimum [Member] 2005 Plan [Member]	Nov. 02, 2013 Restricted Stock [Member] Maximum [Member] 2005 Plan [Member]	Nov. 02, 2013 Restricted Stock Units (RSUs) [Member]	Nov. 02, 2013 Restricted Stock Units (RSUs) [Member] 2005 Plan [Member]	Nov. 02, 2013 Performance Shares [Member] 2005 Plan [Member]	Nov. 02, 2013 Performance Stock Units (PSUs) [Member] 2005 Plan [Member]	Nov. 02, 2013 Nonvested Restricted Common Stock and Performance Shares [Member]	Nov. 02, 2013 Restricted common stock and performance stock awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of plans with shares available for grant	1		1
Issuance of incentive awards of Common Stock						17,500,000	12,500,000
Aggregate common stock issued					22,557,528
Shares available for future grants	4,411,479		4,411,479
Award vesting period									3 years	5 years			1 year	3 years
Award expiration period									5 years	10 years
Unrecognized compensation expenses, stock options	$ 400,000		$ 400,000												$ 800,000				$ 2,100,000	$ 1,300,000
Average Period of recognition for unrecognized Compensation expenses								1 year 9 months 3 days											2 years 1 month 3 days
Weighted average grant date fair value	$ 1.13	$ 0.94	$ 1.13	$ 1.08
Total intrinsic value for options exercised (less than $.1 million)	100,000	0	200,000	100,000
Cash received from option exercises (less than $.1 million)			$ 700,000	$ 100,000
Shares granted											234,759	401,370				249,338	261,533	183,758	929,388
Stock granted, weighted average grant date fair value per share											$ 3.03	$ 3.22				$ 3.67	$ 2.95	$ 3.09	$ 3.19
Additional grants available upon meeting target																		32,375