NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fiscal Year (Details)	12 Months Ended
	Jan. 29, 2017	Jan. 31, 2016	Feb. 01, 2015
NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
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	364 days