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Employee Benefit Plan	12 Months Ended
Employee Benefit Plan	Jan. 28, 2017
Compensation and Retirement Disclosure [Abstract]
Employee Benefit Plan	Employee Benefit Plan The Company has a 401(k) Retirement Savings Plan and employees can contribute up to the maximum amount allowed under law. The Company may make discretionary matching and profit sharing contributions, which vest over a period of five years from each employee’s commencement of employment with the Company. During fiscal 2016, fiscal 2015 and fiscal 2014, the Company made matching contributions of $0.5 million, $0.4 million and $0.3 million, respectively.