Nature of Business and Summary of Significant Accounting Policies - Schedule of Sales Return Accrual Activity (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Reserves for Returns and Allowances [Roll Forward]
Beginning balance	$ 439	$ 360	$ 347
Provisions	15,362	15,485	14,945
Usage	(15,352)	(15,406)	(14,932)
Ending balance	$ 449	$ 439	$ 360