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Stock Based Compensation (Schedule of Stock Option Activity) (Details) - Employee Stock Option [Member] $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 29, 2017 USD ($) $ / shares shares
Number of Shares
Outstanding at January 28, 2017	7,000
Granted	0
Forfeited or expired	0
Exercised	(3,500)
Outstanding and exercisable at April 29, 2017	3,500
Weighted-Average Exercise Price
Outstanding at January 28, 2017 | $ / shares	$ 7.63
Exercised | $ / shares	7.63
Outstanding and exercisable at April 29, 2017 | $ / shares	$ 7.63
Weighted-Average Remaining Contractual Term (Years)
Outstanding and exercisable at April 29, 2017	8 months 23 days
Aggregate Intrinsic Value
Outstanding and exercisable at April 29, 2017 | $	$ 62

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Share Based Compensation Arrangement Number Of Shares [Abstract]

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Weighted-Average Exercise Price [Abstract]

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Share Based Compensation Arrangement Weighted Average Remaining Contractual Term [Abstract]

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For presentations that combine terminations, 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 or that expired.

+ 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)(iv)(3)-(4)
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Gross number of share options (or share units) granted during the period.

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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 price at which option holders acquired shares when converting their stock options into shares.

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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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Number of share options (or share units) exercised during the current period.

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