INCOME TAXES (Details) (USD $)	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Federal:
Current	$ 35,013,000	$ 37,313,000	$ 39,511,000
Deferred	4,059,000	312,000	(1,418,000)
Total federal	39,072,000	37,625,000	38,093,000
State:
Current	4,756,000	5,205,000	5,355,000
Deferred	441,000	(4,000)	(217,000)
Total state	5,197,000	5,201,000	5,138,000
Total tax provison	44,269,000	42,826,000	43,231,000
Reconciliation of federal statutory tax rate to effective tax rate
Tax provision computed at the federal statutory rate (in hundredths)	35.00%	35.00%	35.00%
Effect of state income taxes, net of federal benefits (in hundredths)	2.85%	2.81%	2.76%
Other, net (in hundredths)	(0.29%)	(0.15%)	(0.43%)
Tax provision at effective rate (in hundredths)	37.56%	37.66%	37.33%
Reconciliation of unrecognized tax benefit [Roll Forward]
Unrecognized tax benefit - beginning of year	1,539,000	2,708,000	2,604,000
Gross increases - tax positions in prior period	122,000	245,000	55,000
Gross decreases - tax positions in prior period	(168,000)	(964,000)	(42,000)
Gross increases - tax positions in current period	162,000	277,000	278,000
Settlements	(119,000)	(517,000)	0
Lapse of statute of limitations	(197,000)	(210,000)	(187,000)
Unrecognized tax benefit - end of year	1,339,000	1,539,000	2,708,000
Accrued interest and penalties related to unrecognized tax benefits	100,000	200,000	300,000
Interest and penalties recorded	(100,000)	(43,000)	100,000
Unrecognized tax benefits that would affect effective income tax rate	1,000,000	1,000,000	1,100,000
Current [Member]
Deferred tax assets and liabilities, net
Deferred rent	1,486,000	1,452,000
Inventories	5,552,000	4,649,000
Accruals	2,898,000	3,068,000
Stock-based compensation	996,000	1,267,000
Other	31,000	17,000
Total deferred tax assets	10,963,000	10,453,000
Accumulated depreciation and amortization	0	0
Prepaid expenses	(645,000)	(927,000)
Accruals	(26,000)	(42,000)
State taxes	(472,000)	(436,000)
Total deferred tax liabilities	(1,143,000)	(1,405,000)
Deferred income taxes, net	9,820,000	9,048,000
Non-current [Member]
Deferred tax assets and liabilities, net
Deferred rent	5,893,000	5,193,000
Inventories	0	0
Accruals	1,656,000	1,605,000
Stock-based compensation	3,393,000	4,118,000
Other	92,000	2,000
Total deferred tax assets	11,034,000	10,918,000
Accumulated depreciation and amortization	(12,809,000)	(7,289,000)
Prepaid expenses	0	0
Accruals	0	0
State taxes	0	(132,000)
Total deferred tax liabilities	(12,809,000)	(7,421,000)
Deferred income taxes, net	$ (1,775,000)	$ 3,497,000