Basis of Financial Statement Presentation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Nov. 03, 2018	Oct. 28, 2017	Nov. 03, 2018	Oct. 28, 2017	Feb. 02, 2019	Feb. 03, 2018	Aug. 04, 2018
Accounting Policies [Abstract]
Number of weeks in fiscal year	91 days	91 days	273 days	273 days		371 days
Number of weeks in fiscal quarter	P13W	P13W	P39W	P39W		P53W
Unrecognized compensation expense outstanding for nonemployee share-based payment awards							$ 0
Fiscal 2018 [Member]
Accounting Policies [Abstract]
Number of weeks in fiscal year					364 days
Number of weeks in fiscal quarter					P52W