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Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013	Jan. 31, 2014
Income Tax Disclosure [Abstract]
Income tax expense	$ 974,000	$ 436,000	$ 2,235,000	$ 446,000
Income tax expense (benefit) related to prior year's state taxes	80,000	(18,000)	80,000	(18,000)
Income tax benefit from expiration of the statue of limitations	41,000		141,000
Expense included in income tax				464,000
Cumulative unrecognized tax benefits	650,000		650,000		715,000
Developments affecting unrecognized tax benefits	$ 0

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Developments affecting unrecognized tax benefits.

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Income Tax Benefit From Expiration Of Statutes Of Limitation.

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Income tax expense on income from continuing operations for the period.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h))

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-Number 210

-Section 08

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-Article 4



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-Name Accounting Standards Codification

-Glossary Income Tax Expense (or Benefit)

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-Name Accounting Standards Codification

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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