INCOME TAXES, RECONCILIATION BETWEEN FEDERAL INCOME TAX BENEFIT AT STATUTORY RATE AND TOTAL INCOME TAX EXPENSE (BENEFIT) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018
Reconciliation between federal income tax (benefit) expense charged to income before income tax computed at statutory tax rates and actual income tax expense recorded [Abstract]
Federal income tax benefit at the statutory rate	$ (18,328)	$ (16,992)
State income taxes, net	(1,799)	(1,345)
Other	477	1,375
Tax deficiencies related to share-based payments	942	1,948
Tax credits	(2,060)	(4,386)
Valuation allowance on net deferred tax asset	21,206	6,077
Income tax expense, adjustment of deferred tax assets, Tax Act		255
Total income tax expense (benefit)	$ 438	$ (13,068)