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Summary of Significant Accounting Policies - Additional Information (Details) | 12 Months Ended
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Jan. 30, 2016 USD ($) Subsidiaries Segment | Jan. 31, 2015 USD ($) | Feb. 01, 2014 USD ($)
Significant Accounting Policies [Line Items] |  |  |
Number of subsidiaries | Subsidiaries | 4 |  |
Fiscal period duration | 364 days | 364 days | 364 days
Number of reportable segment | Segment | 1 |  |
Allowance for doubtful accounts receivable | $ 0 | $ 113,000 |
Inventory reserves | 4,306,000 | 4,089,000 |
Impairment charge to long-lived assets | 0 | 0 | $ 0
Sales return reserve | 799,000 | 716,000 |
Recognized gift card breakage income | $ 846,000 | 833,000 | 0
Loyalty points dormancy period | 18 months |  |
Recognized customer loyalty program breakage income | $ 232,000 | 0 |
Stop-loss insurance maintained by health insurance company, deductible per person under health insurance | 100,000 |  |
Reserve on claims included in accrued expenses | 980,000 | 811,000 |
Stop-loss insurance maintained by workers compensation insurance company, deductible per person under workers compensation insurance | 150,000 |  |
Workers compensation plan, estimated IBNR | 527,000 | 107,000 |
Net advertising expenses | $ 6,634,000 | 4,629,000 | $ 4,685,000
Minimum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Furniture, fixtures, and equipment, estimated useful life | P3Y |  |
Maximum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Furniture, fixtures, and equipment, estimated useful life | P10Y |  |
Wells Fargo Senior Secured Revolving Credit Facility |  |  |
Significant Accounting Policies [Line Items] |  |  |
Amounts in depository under lock-box arrangements | $ 5,939,000 | $ 5,987,000 |

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