Income Taxes (Details) (USD $)	3 Months Ended								12 Months Ended
	Feb. 02, 2013	Oct. 27, 2012	Jul. 28, 2012	Apr. 28, 2012	Jan. 28, 2012	Oct. 29, 2011	Jul. 30, 2011	Apr. 30, 2011	Feb. 02, 2013 item	Jan. 28, 2012	Jan. 29, 2011
Current:
Federal									$ 70,000	$ (6,809,000)	$ 9,304,000
State									313,000	(863,000)	1,340,000
Total current									383,000	(7,672,000)	10,644,000
Deferred:
Federal									(2,281,000)	(499,000)	429,000
State									(618,000)	355,000	(331,000)
Total deferred									(2,899,000)	(144,000)	98,000
Income tax (benefit) expense	(780,000)	(2,869,000)	(4,628,000)	5,761,000	(3,834,000)	(5,246,000)	(5,106,000)	6,370,000	(2,516,000)	(7,816,000)	10,742,000
Reconciliation of income tax (benefit) expense computed using the federal statutory rate to the reported income tax (benefit) expense
Statutory rate applied to (loss) income before income taxes									(1,659,000)	(6,241,000)	11,058,000
State income taxes, net of federal benefit									(182,000)	(684,000)	1,191,000
State tax credits									(106,000)	(342,000)	(443,000)
State tax credits - valuation allowance (net of federal benefit)										810,000
Tax exempt interest									(7,000)	(9,000)	(37,000)
General business credits									(691,000)	(1,477,000)	(987,000)
Other									129,000	127,000	(40,000)
Income tax (benefit) expense	(780,000)	(2,869,000)	(4,628,000)	5,761,000	(3,834,000)	(5,246,000)	(5,106,000)	6,370,000	(2,516,000)	(7,816,000)	10,742,000
Deferred tax assets:
Deferred rent amortization	1,773,000				1,980,000				1,773,000	1,980,000
Inventory capitalization	2,628,000				1,898,000				2,628,000	1,898,000
Federal jobs credits	1,438,000								1,438,000
Vacation liability	850,000				736,000				850,000	736,000
State tax credits	1,528,000				1,421,000				1,528,000	1,421,000
Stock compensation	1,204,000				1,197,000				1,204,000	1,197,000
Legal expense reserve	604,000								604,000
Insurance liabilities	803,000				681,000				803,000	681,000
Other	486,000				455,000				486,000	455,000
Subtotal deferred tax assets	11,314,000				8,368,000				11,314,000	8,368,000
Less: State tax credits valuation allowance - net	(810,000)				(810,000)				(810,000)	(810,000)
Total deferred tax assets	10,504,000				7,558,000				10,504,000	7,558,000
Deferred tax liabilities:
Book and tax depreciation differences	(232,000)				(214,000)				(232,000)	(214,000)
Prepaid expenses	(321,000)				(292,000)				(321,000)	(292,000)
Total deferred tax liabilities	(553,000)				(506,000)				(553,000)	(506,000)
Net deferred tax asset	9,951,000				7,052,000				9,951,000	7,052,000
Benefits that do not qualify for financial statement recognition	0								0
Number of states in which ability to utilize tax credits is no longer more likely than not									1
Valuation allowance	$ 500,000								$ 500,000
Credits carry back period									2 years
Credits carry forward period									20 years
Number of prior years income tax returns planned to be amended									2