Segment and Enterprise Wide Disclosures - Additional Information (Details)	3 Months Ended
Apr. 30, 2016 Segment Customer	May. 02, 2015 Customer
Disclosure Segment And Enterprise Wide Disclosures Additional Information Detail [Abstract]
Number of operating segment \| Segment	1
Number of customer who represented more than 10% of net sales \| Customer	0	0

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration