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Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Income Statement [Abstract]
Net sales	$ 506,768us-gaap_SalesRevenueGoodsNet	$ 459,460us-gaap_SalesRevenueGoodsNet	$ 447,395us-gaap_SalesRevenueGoodsNet
Gift card breakage revenue	853us-gaap_RevenueRecognitionGiftCardsBreakage	1,103us-gaap_RevenueRecognitionGiftCardsBreakage	970us-gaap_RevenueRecognitionGiftCardsBreakage
Total revenue	507,621us-gaap_SalesRevenueNet	460,563us-gaap_SalesRevenueNet	448,365us-gaap_SalesRevenueNet
Cost of sales (exclusive of depreciation as shown below)	304,724us-gaap_CostOfGoodsSold	279,747us-gaap_CostOfGoodsSold	279,749us-gaap_CostOfGoodsSold
Gross profit	202,897us-gaap_GrossProfit	180,816us-gaap_GrossProfit	168,616us-gaap_GrossProfit
Operating expenses:
Compensation and benefits	94,738us-gaap_LaborAndRelatedExpense	86,620us-gaap_LaborAndRelatedExpense	83,181us-gaap_LaborAndRelatedExpense
Other operating expenses	60,879us-gaap_OtherCostAndExpenseOperating	54,257us-gaap_OtherCostAndExpenseOperating	50,732us-gaap_OtherCostAndExpenseOperating
Depreciation	18,639us-gaap_Depreciation	15,947us-gaap_Depreciation	13,175us-gaap_Depreciation
Total operating expenses	174,256us-gaap_OperatingExpenses	156,824us-gaap_OperatingExpenses	147,088us-gaap_OperatingExpenses
Operating income	28,641us-gaap_OperatingIncomeLoss	23,992us-gaap_OperatingIncomeLoss	21,528us-gaap_OperatingIncomeLoss
Interest expense	275us-gaap_InterestExpense	274us-gaap_InterestExpense	287us-gaap_InterestExpense
Interest income		(12)us-gaap_InvestmentIncomeInterest	(28)us-gaap_InvestmentIncomeInterest
Other income, net	(454)us-gaap_OtherNonoperatingIncomeExpense	(229)us-gaap_OtherNonoperatingIncomeExpense	(225)us-gaap_OtherNonoperatingIncomeExpense
Income before income taxes	28,820us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	23,959us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	21,494us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Income tax expense	11,006us-gaap_IncomeTaxExpenseBenefit	9,429us-gaap_IncomeTaxExpenseBenefit	7,699us-gaap_IncomeTaxExpenseBenefit
Net income	$ 17,814us-gaap_NetIncomeLoss	$ 14,530us-gaap_NetIncomeLoss	$ 13,795us-gaap_NetIncomeLoss
Earnings per share:
Basic	$ 1.03us-gaap_EarningsPerShareBasic	$ 0.84us-gaap_EarningsPerShareBasic	$ 0.79us-gaap_EarningsPerShareBasic
Diluted	$ 1.00us-gaap_EarningsPerShareDiluted	$ 0.82us-gaap_EarningsPerShareDiluted	$ 0.77us-gaap_EarningsPerShareDiluted
Weighted average shares for basic earnings per share	17,262us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	17,207us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	17,463us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Effect of dilutive common stock equivalents	531us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment	478us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment	393us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment
Adjusted weighted average shares for diluted earnings per share	17,793us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	17,685us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	17,856us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding

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