Shareholders' Equity (Details 3) $ / shares in Units, $ in Millions	12 Months Ended
Jan. 30, 2016 USD ($) $ / shares shares
Shareholders Equity
Number of Shares	175,886
Restricted share and restricted share unit awards
Shareholders Equity
Unrecognized compensation expense related to unvested share-based restricted stock awards and the unvested restricted share units (in dollars) \| $	$ 8.0
Restricted share units
Shareholders Equity
Number of Shares	23,637
Average Market Price on Date of Grant (in dollars per share) \| $ / shares	$ 60
Restricted share units \| Fiscal 2014
Shareholders Equity
Number of Shares	28,546
Average Market Price on Date of Grant (in dollars per share) \| $ / shares	$ 78
Performance shares \| Fiscal 2012
Shareholders Equity
Number of Shares	49,001
Average Market Price on Date of Grant (in dollars per share) \| $ / shares	$ 47
Performance shares \| Fiscal 2014
Shareholders Equity
Number of Shares	74,702
Average Market Price on Date of Grant (in dollars per share) \| $ / shares	$ 78

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

No definition available.

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- Definition

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).

+ 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)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ 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)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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