Consolidated Statements of Cash Flows (USD $)	6 Months Ended
	Aug. 02, 2014	Aug. 03, 2013
Cash flows from operating activities:
Net income	$ 5,979,000	$ 364,000
Adjustments to reconcile net income to cash provided by (used in) operating activities:
Depreciation and amortization	5,865,000	6,820,000
Impairment of store assets	144,000	140,000
Amortization of discount on investments	34,000	22,000
Amortization of financing costs	37,000	37,000
Deferred lease-related liabilities	2,277,000	(882,000)
Stock-based compensation expense	1,387,000	1,342,000
Loss on disposal of assets	51,000	2,000
Changes in operating assets and liabilities:
Increase in accounts receivable	(4,099,000)	(1,231,000)
(Increase) decrease in merchandise inventories	(3,341,000)	2,656,000
Increase in prepaid expenses and other assets	(1,744,000)	(1,154,000)
Increase in income taxes receivable	(644,000)	(8,000)
(Decrease) increase in accounts payable	(5,274,000)	2,527,000
Decrease in accrued liabilities	(3,602,000)	(1,011,000)
Increase in other liabilities	144,000	70,000
Net cash (used in) provided by operating activities	(2,786,000)	9,694,000
Cash flows from investing activities:
Purchases of property, equipment and improvements	(10,340,000)	(3,349,000)
Purchases of available-for-sale investments	(6,497,000)	(10,816,000)
Redemptions of available-for-sale investments	6,740,000	950,000
Net cash used in investing activities	(10,097,000)	(13,215,000)
Cash flows from financing activities:
Shares redeemed for payroll taxes	(1,469,000)	(190,000)
Exercise of stock options	843,000	94,000
Net cash used in financing activities	(626,000)	(96,000)
Net decrease in cash and cash equivalents	(13,509,000)	(3,617,000)
Cash and cash equivalents at beginning of period	41,074,000	40,739,000
Cash and cash equivalents at end of period	27,565,000	37,122,000
Supplemental Cash Flow Information:
Accrued purchases of equipment and improvements	531,000	59,000
Shares surrendered for stock option cost	$ 1,715,000	$ 0