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Stock Based Compensation (Narrative) (Details) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Apr. 28, 2015 | Jan. 28, 2017 | Jan. 30, 2016 | Jan. 31, 2015 | Jun. 14, 2012
Stock Options Plan [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Common stock reserved for issuance |  | 380,000 |  |  | 3,000,000
Common stock reserved, amount after amendment |  |  |  |  | 3,900,000
Restricted Stock [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Total fair value of vested stock |  | $ 1,400,000 | $ 478,000 | $ 351,000 |
Weighted average fair value of shares granted |  | $ 24.98 | $ 24.43 | $ 25.50 |
Stock-based compensation expense |  |  |  | $ 906,000 |
Cumulative share based compensation expense |  |  |  | 3,200,000 |
Reduced share based compensation expense |  |  |  | $ 2,300,000 |
Unrecognized share-based compensation expense |  | $ 7,400,000 |  |  |
Unrecognized compensation cost, recognition period |  | 1 year 10 months 24 days |  |  |
Stock Appreciation Rights (SARs) [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized share-based compensation expense |  | $ 110,000 |  |  |
Unrecognized compensation cost, recognition period |  | 8 months 12 days |  |  |
Defined maximum gain | $ 10.00 | $ 10.00 | $ 10.00 | $ 6.67 |
Exercise price | $ 24.26 |  |  |  |

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- Definition Unrecognized cost of unvested share-based compensation awards. + 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 (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + 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 (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + 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 (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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). + 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 (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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