Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 29, 2016	Oct. 31, 2015	Oct. 29, 2016	Oct. 31, 2015
Income Tax [Line Items]
Income before income taxes	$ 8,695,000	$ 7,020,000	$ 35,308,000	$ 25,262,000
Income tax expense	$ 3,248,000	$ 2,683,000	$ 13,256,000	$ 9,586,000
Effective tax rate	37.40%	38.20%	37.50%	37.90%
Accrual for uncertain tax, interest or penalties	$ 0		$ 0
Minimum [Member]
Income Tax [Line Items]
State income taxes, statute of limitations period (years)			3 years
Maximum [Member]
Income Tax [Line Items]
State income taxes, statute of limitations period (years)			4 years