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Shareholders' Equity Outstanding Stock Options (Details) (USD $)
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12 Months Ended | 0 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | ||||||
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Feb. 02, 2013
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Jan. 28, 2012
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Jan. 29, 2011
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Oct. 03, 2012
2011 Omnibus Incentive Plan [Member]
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Feb. 02, 2013
2011 Omnibus Incentive Plan [Member]
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Jan. 28, 2012
2011 Omnibus Incentive Plan [Member]
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Feb. 02, 2013
2004 Omnibus Incentive Stock Plan [Member]
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Jan. 28, 2012
2004 Omnibus Incentive Stock Plan [Member]
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Feb. 02, 2013
2001 Omnibus Stock Plan [Member]
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Jan. 28, 2012
2001 Omnibus Stock Plan [Member]
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Feb. 02, 2013
Stock Option [Member]
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Jan. 28, 2012
Stock Option [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||||||
| Common stock, shares authorized | 100,000,000 | 100,000,000 | ||||||||||
| Granted, weighted average grant date fair value | $ 1.03 | $ 4.31 | $ 2.26 | $ 4.00 | $ 3.82 | $ 1.70 | $ 0.00 | $ 0.00 | ||||
| Options outstanding | 2,500,000 | 160,000 | 2,098,000 | 2,345,000 | 1,169,000 | 1,226,000 | 525,000 | 650,000 | ||||
| Options outstanding, weighted average exercise price | $ 3.73 | $ 2.25 | $ 6.23 | $ 6.03 | $ 5.88 | $ 6.15 | $ 4.12 | $ 4.30 | ||||
| Options outstanding, weighted average remaining contractual term | 9 years 9 months 18 days | 5 years 9 months 18 days | 5 years 6 months | 7 years 4 months 24 days | ||||||||
| Options outstanding, aggregate intrinsic value | $ 213,000 | $ 318,000 | $ 207,000 | $ 75,000 | ||||||||
| Vested or expected to vest, outstanding | 2,468,000 | 2,085,000 | 1,166,000 | 509,000 | ||||||||
| Vested or expected to vest, outstanding, weighted average exercise price | $ 3.75 | $ 6.22 | $ 5.90 | $ 4.10 | ||||||||
| Vested or expected to vest, outstanding, weighted average remaining contractual term | 9 years 9 months 18 days | 5 years 9 months 18 days | 5 years 6 months | 7 years 4 months 24 days | ||||||||
| Vested or expected to vest, outstanding, aggregate intrinsic value | 194,000 | 318,000 | 206,000 | 73,000 | ||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value | $ 146,000 | $ 1,856,000 | $ 355,000 | |||||||||
| X | ||||||||||
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- Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of difference between fair value of the underlying shares reserved for issuance and exercise prices of fully vested and expected to vest options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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