Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended
	Apr. 30, 2016	May. 02, 2015
Income Tax [Line Items]
Income before income taxes	$ 10,826,000	$ 7,012,000
Income tax expense	$ 4,068,000	$ 2,734,000
Effective tax rate	37.60%	39.00%
Accrual for uncertain tax, interest or penalties	$ 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