INCOME TAXES (Details) - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
	Feb. 03, 2018	Dec. 31, 2017	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Provision for income taxes:
Current federal income tax expense			$ 29,660	$ 27,278	$ 46,158
Current state income tax expense			5,604	4,857	3,960
Deferred income tax expense (benefit)			(1,986)	(1,099)	(340)
Total			$ 33,278	$ 31,036	$ 49,778
Reconciliation of effective tax rate to statutory rate:
Statutory rate	21.00%	35.00%	21.00%	21.00%	33.70%
State income tax effect			3.20%	3.00%	1.90%
Tax exempt interest income			(0.20%)	(0.20%)	(0.20%)
Other			0.20%	0.70%	0.30%
Effective tax rate			24.20%	24.50%	35.70%
Deferred income tax assets (liabilities):
Inventory			$ 4,877	$ 4,439
Stock-based compensation			1,627	1,918
Accrued compensation			3,912	3,451
Accrued store operating costs			2,691	3,023
Realized and unrealized loss on securities			(312)	(147)
Gift certificates redeemable			986	1,135
Deferred rent liability			231	7,015
Property and equipment			(12,787)	(15,004)
Operating lease right-of-use assets			(84,021)	0
Operating lease liabilities			90,612	0
Net deferred income tax asset			$ 7,816	$ 5,830