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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

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- Definition

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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- Definition

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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- Definition

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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- Definition

Share Repurchase Program, Shares Repurchased, Value

+ References

No definition available.

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- Definition

Stock Repurchase Program, Number of Shares Repurchased

+ References

No definition available.

+ Details

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- Definition

Stock Repurchase Program, Weighted Average Price Paid Per Share

+ References

No definition available.

+ Details

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Earnings (Loss) Per Share - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	May 03, 2015	May 04, 2014	Jan. 14, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options to purchase common stock outstanding	661,650	465,450
Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Restricted shares outstanding		60,001
Common Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares authorized to be repurchased (shares)			1,500,000
Number of shares repurchased (shares)	340,800
Weighted average price paid per share (usd per share)	$ 12.50
Aggregate amount paid for shares repurchased	$ 4.3
Remaining number of shares authorized to be repurchased (shares)	1,159,200