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Summary of Significant Accounting Policies - Additional Information (Details) | 12 Months Ended
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Feb. 03, 2018 USD ($) Store Segment shares | Jan. 28, 2017 USD ($) | Jan. 30, 2016 USD ($)
Accounting Policies [Line Items] |  |  |
Impairment charge | $ 4,100,000 | $ 400,000 | $ 0
Number of reportable segments | Segment | 1 |  |
Number of operating segments | Segment | 2 |  |
Amortization expense of intangibles | $ 407,000 | 400,000 | 600,000
Direct response advertising costs, amortization period | 1 year |  |
Direct response costs deferred | $ 0 | 0 |
Stock compensation expense | 1,636,000 | 1,256,000 | 2,195,000
Total grant-date fair value of options vested | 1,800,000 | 2,900,000 | 1,000,000
Gift card liability, net of breakage | $ 2,200,000 | 2,400,000 |
Unvested time-based restricted stock |  |  |
Accounting Policies [Line Items] |  |  |
Dilutive shares | shares | 36,666 |  |
Deferred Stock |  |  |
Accounting Policies [Line Items] |  |  |
Shares excluded from computation of basic earnings per share | shares | 115,457 |  |
Time-Vested Awards |  |  |
Accounting Policies [Line Items] |  |  |
Unrecognized stock compensation cost | $ 1,800,000 |  |
Unrecognized stock compensation cost weighted average recognition period | 20 months |  |
Selling, General and Administrative Expenses |  |  |
Accounting Policies [Line Items] |  |  |
Advertising expenses | $ 29,500,000 | 18,200,000 | $ 23,600,000
Casual Male Trademark |  |  |
Accounting Policies [Line Items] |  |  |
Intangible assets, amortization period | 2018 |  |
Accumulated amortization of intangibles | $ 7,400,000 | 7,000,000 |
Amortization expense of intangibles | 307,000 |  |
Customer Lists |  |  |
Accounting Policies [Line Items] |  |  |
Gross carrying amount of intangibles | 7,700,000 | $ 7,700,000 |
Technology Projects |  |  |
Accounting Policies [Line Items] |  |  |
Impairment charge | 1,900,000 |  |
Rochester Trademark |  |  |
Accounting Policies [Line Items] |  |  |
Indefinite-lived intangible asset, carrying value | $ 1,500,000 |  |
Minimum |  |  |
Accounting Policies [Line Items] |  |  |
Credit card and debit card receivables from banks settlement period | 2 days |  |
Maximum |  |  |
Accounting Policies [Line Items] |  |  |
Credit card and debit card receivables from banks settlement period | 4 days |  |
DXL Stores | UNITED STATES |  |  |
Accounting Policies [Line Items] |  |  |
Number of stores | Store | 212 |  |
Casual Male XL Retail and Outlet Stores | UNITED STATES |  |  |
Accounting Policies [Line Items] |  |  |
Number of stores | Store | 78 |  |
Casual Male XL outlets |  |  |
Accounting Policies [Line Items] |  |  |
Number of stores | Store | 33 |  |
DXL Outlets |  |  |
Accounting Policies [Line Items] |  |  |
Number of stores | Store | 14 |  |
Rochester Clothing Stores | UNITED STATES |  |  |
Accounting Policies [Line Items] |  |  |
Number of stores | Store | 5 |  |
Rochester Clothing Stores | UNITED KINGDOM |  |  |
Accounting Policies [Line Items] |  |  |
Number of stores | Store | 1 |  |
Rochester Clothing Stores | Canada |  |  |
Accounting Policies [Line Items] |  |  |
Number of stores | Store | 2 |  |

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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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