Share-Based Compensation (Schedule of Stock options Outstanding and Exercisable) (Details) - Employee Stock Option [Member] - $ / shares	12 Months Ended
Jan. 30, 2016	Jan. 31, 2015
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options	301,295	416,803
Weighted- Average Remaining Life (Years)	2 years 10 months 24 days
Weighted- Average Exercise Price	$ 18.93	$ 17.75
Number of Options	267,628
Weighted Average Remaining Life (Years)	2 years 6 months
Weighted- Average Exercise Price	$ 19.24
$3.33 - $11.54
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options	71,625
Weighted- Average Remaining Life (Years)	4 years 2 months 12 days
Weighted- Average Exercise Price	$ 6.36
Number of Options	54,625
Weighted Average Remaining Life (Years)	4 years 6 months
Weighted- Average Exercise Price	$ 7.09
$11.55 - $14.45
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options	61,000
Weighted- Average Remaining Life (Years)	4 years 1 month 6 days
Weighted- Average Exercise Price	$ 13.99
Number of Options	61,000
Weighted Average Remaining Life (Years)	4 years 1 month 6 days
Weighted- Average Exercise Price	$ 13.99
$14.46 - $15.35
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options	20,750
Weighted- Average Remaining Life (Years)	3 years 10 months 24 days
Weighted- Average Exercise Price	$ 15.20
Number of Options	20,750
Weighted Average Remaining Life (Years)	3 years 10 months 24 days
Weighted- Average Exercise Price	$ 15.20
$15.36 - $22.44
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options	63,006
Weighted- Average Remaining Life (Years)	6 months
Weighted- Average Exercise Price	$ 20.96
Number of Options	63,006
Weighted Average Remaining Life (Years)	6 months
Weighted- Average Exercise Price	$ 20.96
$22.45 - $35.25
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options	84,914
Weighted- Average Remaining Life (Years)	2 years 6 months
Weighted- Average Exercise Price	$ 32.50
Number of Options	68,247
Weighted Average Remaining Life (Years)	1 year
Weighted- Average Exercise Price	$ 33.31

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.

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)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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 outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock 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)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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