Share-Based Compensation (Stock Option Activity) (Details) (USD $)	6 Months Ended
Aug. 02, 2014	Aug. 03, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Weighted Average Grant Date Fair Value	$ 0	$ 0
Stock Option Activity, Number of Underlying Shares
Outstanding, Number of Underlying Shares, Beginning Balance	532,400
Granted, Number of Underlying Shares	0
Exercised, Number of Underlying Shares	(5,000)
Forfeited or expired, Number of Underlying Shares	(3,800)
Outstanding, Number of Underlying Shares, Ending Balance	523,600
Stock Option Activity, Weighted Average Exercise Price
Outstanding, Weighted-Average Exercise Price, Beginning Balance	$ 65.37
Granted, Weighted-Average Exercise Price	$ 0.00
Exercised, Weighted-Average Exercise Price	$ 31.07
Forfeited or expired, Weighted-Average Exercise Price	$ 78.65
Outstanding, Weighted-Average Exercise Price, Ending Balance	$ 65.60
Outstanding, Aggregate Intrinsic Value	$ 1,108,040
Outstanding, Weighted-Average Remaining Contractual Life (in years)	2 years 8 months 12 days
Stock options exercisable, Number of Underlying Shares	523,600
Stock options exercisable, Weighted-Average Exercise Price	$ 65.60
Stock options exercisable, Aggregate Intrinsic Value	$ 1,108,040
Stock options exercisable, Weighted-Average Remaining Contractual Life (in years)	2 years 8 months 12 days

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

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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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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, 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 shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

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

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No definition available.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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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 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.

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Weighted average grant-date fair value of options vested.

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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 that were terminated.

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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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