Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 29, 2017	Jan. 28, 2017
Income Tax Disclosure [Abstract]
Valuation allowance of deferred tax assets	$ 28,182	$ 27,758
Valuation allowance increased by non-cash charge to income tax expense	424
Unrecognized tax benefits related to uncertain income tax positions	764
Unrecognized tax benefits related to uncertain income tax position accrued interest and penalties	336
Recognized liabilities for unrecognized tax benefits that impact effective tax rate	555
Gross unrecognized tax benefits decrease for uncertain tax positions	383
Approximate gross unrecognized tax benefit that would impact the effective tax rate	$ 271