Description of Business and Summary of Significant Accounting Policies - Additional Information (Detail)			3 Months Ended			12 Months Ended
	Apr. 22, 2016 USD ($) shares	Nov. 27, 2013	Jan. 28, 2017 USD ($)	Apr. 30, 2016 USD ($) shares	Aug. 01, 2015 USD ($)	Jan. 28, 2017 USD ($) Customer	Jan. 30, 2016 USD ($) Customer	Jan. 31, 2015 USD ($) Customer	Apr. 28, 2017 USD ($)	Apr. 13, 2017 USD ($)
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Common stock, shares issued | shares	11,818,181
Gross proceeds from issuance of stock	$ 65,000,000
Payment under Tax Receivable Agreements						$ 29,700,000		$ 3,199,000
Repayment of outstanding indebtedness						191,167,000	$ 123,127,000	27,500,000
Inventory write down non-recurring net					$ 14,447,000		10,300,000
Depreciation expense						7,070,000	6,426,000	3,381,000
Impairment charges relating to long-lived assets			$ 2,082,000			2,082,000	0	0
Impairment of goodwill			22,311,000			22,311,000	0	0
Goodwill			41,435,000			$ 41,435,000	63,746,000	63,746,000
Discount rate on assumptions						16.00%
Marketing and advertising expense						$ 8,156,000	9,177,000	7,427,000
Deferred production expenses associated with company-directed advertising			182,000			182,000	416,000
Tradename [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Impairment of indefinite-lived intangible asset			$ 30,750,000			$ 30,750,000	0	0
Wholesale [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Percentage of fair value exceeded			40.00%			40.00%
Goodwill			$ 41,435,000			$ 41,435,000	$ 41,435,000	$ 41,435,000
Discounted Cash Flow Valuation Analysis Technique [Member] | Tradename [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Percentage of fair value below the carrying amount			30.00%			30.00%
Direct-to-Consumer [Member] | Income Approach Valuation Technique [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Weighting percentage fair value of reporting unit						80.00%
Direct-to-Consumer [Member] | Income and Market Approach Valuation Technique [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Percentage of fair value below the carrying amount			40.00%			40.00%
Direct-to-Consumer [Member] | Market Approach Valuation Technique [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Weighting percentage fair value of reporting unit						20.00%
Customer Relationships [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Estimated economic useful life of intangibles						20 years
Customer Concentration Risk [Member] | Sales [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Number of wholesale partners each accounted for more than ten percent of net sales | Customer						3	3	3
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Number of wholesale partners each accounted for more than ten percent of accounts receivable | Customer						3	3
Wholesale Partner One [Member] | Customer Concentration Risk [Member] | Sales [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Percentage accounted from major customers						19.60%	18.30%	23.20%
Wholesale Partner Two [Member] | Customer Concentration Risk [Member] | Sales [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Percentage accounted from major customers						14.40%	13.80%	13.20%
Wholesale Partner Three [Member] | Customer Concentration Risk [Member] | Sales [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Percentage accounted from major customers						10.80%	10.80%	12.30%
Wholesale Partners [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Percentage accounted from major customers						57.50%	51.80%
Maximum [Member] | Furniture, Fixtures and Computer Equipment [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment						7 years
Maximum [Member] | Capitalized Software [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Estimated economic useful life of capitalized software						7 years
Minimum [Member] | Furniture, Fixtures and Computer Equipment [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment						3 years
Minimum [Member] | Capitalized Software [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Estimated economic useful life of capitalized software						3 years
Rights Offering [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Common stock, shares issued | shares	11,622,518			11,818,181
Gross proceeds from issuance of stock	$ 63,924,000			$ 65,000,000
Revolving Credit Facility [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Repayment of outstanding indebtedness	$ 20,000,000			$ 20,000,000
Term Loan Facility [Member] | Maximum [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Total secured leverage ratio		3.25				3.25
Term Loan Facility [Member] | Scenario, Forecast [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Funds remaining after equity contribution									$ 15,196,000
Term Loan Facility [Member] | Subsequent Event [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Funds utilized for equity contribution										$ 6,241,000
Term Loan Facility [Member] | Rights Offering [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Gross proceeds from issuance of stock						$ 21,000,000
Tax Receivable Agreement [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Payment under Tax Receivable Agreements						$ 22,262,000