Description of Business and Significant Accounting Policies - Revenue Recognition and Sales Returns, Advertising Expenses, Income Taxes, Earnings Per Share, and Operating Segments (Details) shares in Thousands, $ in Thousands	12 Months Ended
	Feb. 03, 2018 USD ($) Segment shares	Jan. 28, 2017 USD ($) shares	Jan. 30, 2016 USD ($) shares
Valuation and Qualifying Accounts Disclosure [Line Items]
Gift card breakage recognized as revenue	$ 800	$ 1,100	$ 1,000
Advertising expense	$ 10,500	$ 9,300	$ 9,600
Tax benefit likelihood recognized	50.00%
Stock options not included in the computation of diluted earnings per share (in shares) | shares	686	629	316
Number of reportable segments | Segment	1
Reserve for Sales Returns
Valuation and Qualifying Accounts Disclosure [Line Items]
Liability for sales returns	$ 1,520	$ 936