NATURE OF BUSINESS AND BASIS OF PRESENTATION - Fiscal Year (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 29, 2018	Jul. 30, 2017	Jul. 29, 2018	Jul. 30, 2017	Feb. 03, 2019	Jan. 28, 2018
Length of fiscal year (in days)					371 days	364 days
Length of fiscal quarter (in days)	91 days	91 days	182 days	182 days
Minimum
Length of fiscal year (in days)			364 days
Maximum
Length of fiscal year (in days)			371 days