XML 29 R37.htm IDEA: XBRL DOCUMENT v2.4.0.8

Summary of Significant Accounting Policies (Revenue Recognition) (Details)	12 Months Ended
	Feb. 01, 2014
Accounting Policies [Abstract]
Period of sales return acceptance	14 days

X

- Definition

Revenue Recognition, Sales Returns, Period of Returns

+ References

No definition available.

+ Details

Name:	five_RevenueRecognitionSalesReturnsPeriodofReturns
Namespace Prefix:	five_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_AccountingPoliciesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration