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Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Aug. 03, 2019	Aug. 04, 2018	Aug. 03, 2019	Aug. 04, 2018
Income Tax [Line Items]
Income before income taxes	$ 37,541,000	$ 31,405,000	$ 63,697,000	$ 57,190,000
Income tax expense	$ 8,710,000	$ 6,342,000	$ 9,204,000	$ 10,323,000
Effective tax rate	23.20%	20.20%	14.40%	18.10%
Accrual for uncertain tax, interest or penalties	$ 0		$ 0
Minimum
Income Tax [Line Items]
State income taxes, statute of limitations period (years)			3 years
Maximum
Income Tax [Line Items]
State income taxes, statute of limitations period (years)			4 years

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