NATURE OF BUSINESS AND BASIS OF PRESENTATION - Fiscal Year (Details)	3 Months Ended		12 Months Ended
	May. 01, 2016	May. 03, 2015	Jan. 29, 2017	Jan. 31, 2016
NATURE OF BUSINESS AND BASIS OF PRESENTATION
Length of some fiscal years, minimum (in days)	364 days
Length of some fiscal years, maximum (in days)	371 days
Length of fiscal year (in days)			364 days	364 days
Length of fiscal quarter (in days)	91 days	91 days