CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Jan. 30, 2021	Feb. 01, 2020	Feb. 02, 2019
Cash flows from operating activities:
Net income (loss)	$ 16,639,000	$ (53,265,000)	$ 3,780,000
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation of property and equipment	23,256,000	27,720,000	29,453,000
Amortization of debt issuance costs	93,000	56,000	54,000
Asset impairment	9,387,000	19,229,000	0
Cumulative effect of change in accounting principle		(331,000)
Loss on disposal of property and equipment	87,000	200,000	383,000
Stock-based compensation expense	1,171,000	3,254,000	2,015,000
Deferred income taxes	1,525,000	178,000	513,000
Changes in assets and liabilities:
Inventories, net	32,591,000	(10,240,000)	(3,179,000)
Prepaid expenses and other current assets	(1,654,000)	3,851,000	633,000
Accounts payable	(2,883,000)	18,928,000	(4,443,000)
Accounts payable to related party vendor		(8,166,000)	643,000
Accrued expenses	6,803,000	1,666,000	(1,592,000)
Income taxes payable (refundable)	1,959,000	(704,000)	(4,448,000)
Operating lease assets and liabilities	(8,573,000)	(10,645,000)	(1,047,000)
Other assets and liabilities	(1,838,000)		(444,000)
Net cash provided by (used in) operating activities	78,563,000	(8,269,000)	22,321,000
Cash flows from investing activities:
Proceeds from sale of property and equipment	209,000
Capital expenditures	(8,698,000)	(15,680,000)	(28,775,000)
Net cash used in investing activities	(8,489,000)	(15,680,000)	(28,775,000)
Cash flows from financing activities:
Borrowings on revolving line of credit	40,000,000	25,000,000
Repayments on revolving line of credit	(40,000,000)	(25,000,000)
Debt issuance costs	(26,000)	(362,000)
Cash used in net share settlement of stock options and restricted stock	(60,000)	(87,000)	(382,000)
Exercise of stock options	360,000		23,000
Employee stock purchases	35,000	241,000	320,000
Repurchase and retirement of common stock	(178,000)	(3,657,000)	(15,717,000)
Net cash provided by (used in) financing activities	131,000	(3,865,000)	(15,756,000)
Cash and cash equivalents:
Net increase (decrease)	70,205,000	(27,814,000)	(22,210,000)
Beginning of the year	30,132,000	57,946,000	80,156,000
End of the year	100,337,000	30,132,000	57,946,000
Supplemental cash flow information:
Interest paid	442,000	377,000	190,000
Income taxes (received) paid	(11,945,000)	1,091,000	5,966,000
Non-cash accruals for purchases of property and equipment	396,000	1,853,000	$ 1,272,000
Operating lease assets and liabilities recognized upon adoption of ASC 842		295,240,000
(Decrease) increase of operating lease liabilities from new or modified leases	$ (4,001,000)	$ 18,922,000