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Retirement Plan - Additional Information (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Compensation And Retirement Disclosure [Abstract]
Company contribution under plan	$ 276us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount	$ 234us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount	$ 174us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount

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- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

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