CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 28, 2012	Apr. 30, 2011
Cash Flows From Operating Activities
Net income	$ 11,020	$ 9,919
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,831	3,493
Stock-based compensation	692	1,225
Loss on retirement of assets	13	119
Deferred income taxes	(614)	935
Lease incentives	2,660	1,212
Other	396	352
Changes in operating assets and liabilities:
Accounts receivable	(1,576)	341
Merchandise inventories	(5,605)	(5,331)
Accounts payable and accrued liabilities	12,932	2,248
Other	4,955	2,516
Net cash provided by operating activities	28,704	17,029
Cash Flows From Investing Activities
Purchases of property and equipment	(8,545)	(6,872)
Proceeds from sale of property and equipment	0	4
Net cash used in investing activities	(8,545)	(6,868)
Cash Flows From Financing Activities
Proceeds from issuance of stock	1,097	118
Excess tax benefits from stock-based compensation	433	1,211
Purchase of treasury stock	0	(2,630)
Net cash provided by (used in) financing activities	1,530	(1,301)
Net increase in cash and cash equivalents	21,689	8,860
Cash and cash equivalents at beginning of period	70,602	60,193
Cash and Cash Equivalents at End of Period	92,291	69,053
Supplemental disclosures of cash flow information:
Cash paid during period for interest	69	59
Cash paid during period for income taxes	1,036	324
Capital expenditures incurred but not yet paid	$ 1,059	$ 798